naval warfare

naval warfare
Military operations conducted on, under, or over the sea and waged against other seagoing vessels or targets on land or in the air.

The earliest naval attacks were raids by the armed men of a tribe or town using fishing boats or merchant ships. The first warships were galleys, replaced in the 16th and 17th centuries by sail-driven warships equipped with cannons. The British victory over the Spanish Armada (1588) marked a major development: British galleons refused to allow the Spanish ships to get close enough for boarding and hand-to-hand combat and instead pounded them with guns of superior firing capability. Ships of the line and cruisers emerged in the 17th and 18th centuries. In the later 19th century, steam replaced sail propulsion, and ironclads offered greater protection against the increasing power of guns. The battleship, developed in these years, reigned until World War II, when the Pearl Harbor attack proved that bombers launched from aircraft carriers could sink any and all surface ships. Since then, naval air power
missiles as well as carrier-based planes
has been the primary weapon of the world's fleets. Submarines also play a major role in naval warfare.

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      the tactics of military operations conducted on, under, or over the sea.

      Being the activities of battle itself, tactics are conceived and executed at the literal and metaphoric centre of war's violence. Tactical science is an orderly description of these activities, and tactical art is the skill required to carry them out in combat.

The search for constants
 It should be said that, in order to achieve victory, willpower and courage must always accompany tactical art and science and often dominate the outcome of battle. These qualities are not tactics, but they are related to tactics in the way a sound decision is related to the resolution with which it is implemented. There is no finer example than Horatio Nelson (Nelson, Horatio Nelson, Viscount). In the Battle of the Nile (Nile, Battle of the) (Aug. 1–2, 1798), not only were Admiral Nelson's tactical decisions brilliant, but he had so imbued his captains with his thinking that, when they saw a chance for surprise by attacking the disengaged side of the French fleet, they were quick to seize it and gain a decisive advantage. Still, their decisions only established the basis of that great victory, for the French fought with desperation, and it took hard fighting by British tars, inspired by Nelson's charismatic leadership, to fulfill the promise of victory.

 In a similar manner, new technology is not tactics, but it may have a decisive effect in both altering the face of battle and affecting its outcome. Navies put special emphasis on warships and aircraft. It is well said that on the ground men are served by their weapons while at sea weapons are served by men. Lest his readers be too enamoured of élan and fighting spirit, Rear Admiral Bradley Allen Fiske (Fiske, Bradley Allen) used a telling example in The Navy as a Fighting Machine (1916). He pointed out that in the American Civil War the Confederate ironclad Virginia, with 10 guns, handily defeated the Union sloops-of-war Congress and Cumberland, which carried a total of 74 guns. One day later the Union's Monitor (Monitor and Merrimack, Battle of the), carrying two guns in a turret, fought the Virginia to a standstill. Courage and resolve were powerless against progress and armour.

 The American naval strategist Alfred Thayer Mahan (Mahan, Alfred Thayer) made perhaps too much of the influence on tactics of technological progress. In his seminal The Influence of Sea Power upon History, 1660–1783 (1890), he wrote that, due to new fighting systems, “from time to time the structure of tactics has to be wholly torn down but the foundations of strategy so far remain, as though laid upon a rock.” Mahan appreciated the utility of naval history for the discovery of strategic constants—that is, principles of strategy that have remained valid throughout technological change. Tacticians, on the other hand, are conscious of tactical constants as well, especially the following: the power of concentrated force (rarely in history has a naval tactician withheld a reserve); the special value of surprise; the abiding need for cohesion brought about by sound command and combat doctrine; the consummate goal of attacking effectively first; and the unique role played by timing and timeliness.

The study of trends
      Naval officers also study history for its trends, because trends are the only clue as to how tactics are changing and are the best check against the fatal sin of preparing to fight the last war. The trend that has influenced all else in the conduct of naval battle is the increasing range and lethality of naval weapons (military technology). Paradoxically, greater lethality has not led a trend toward greater loss of life. The first reason is that, unlike ground combat, the principal aim at sea is to put the fighting machine, not the fighting man, out of action, and modern machines are (thus far) sensitive to damage. Second, it is a longstanding constant that naval battles, once joined, are fast-moving and decisive.

      To sketch how the range of weapons has affected naval tactics, a simple structure that describes the processes of combat must be established. First is firepower delivery itself. Second is the scouting process, which gathers information by reconnaissance, surveillance, cryptanalysis, and other means and delivers it to the tactical commander. Third is command itself—or command and control (C2) in modern parlance—which assimilates the information, decides which actions are called for, and directs forces to act accordingly.

      Combat being the activities of force against force, there is a natural antithesis to all three processes described above. First, the effect of enemy firepower is reduced by shooting down the incoming aircraft or missile, by maneuvering to avoid a torpedo, and by ship survivability or “staying power”—that is, the ability to continue fighting after suffering damage. Second, when scouting was accomplished by ships or aircraft flung out ahead of a formation, information denial was accomplished by screening—that is, by flinging out an opposing line of ships and aircraft. Modern ways to confound the enemy's scouting effort are keeping radio silence and jamming his radars, both of which deny him information. Third, enemy C2 can be confused by deceptive signals or decoy forces. It can also be crippled or delayed by electronically jamming enemy communications.

      The seven processes described above—namely, firepower delivery, scouting, C2, the three countermeasures against them, and maneuver—are the raw materials of naval tactics. To achieve success, they are synthesized into a harmonious blend of action and counteraction. For example, a modern naval screen of ships or aircraft defends a formation both by destroying enemy aircraft or missiles and by denying tactical information. The screen itself may even be so central in importance that it becomes the focus of enemy attack, with destruction of the screen being tantamount to destruction of the force. Thus, the study of naval tactics has become more than the study of formations, firepower, and maneuvers. The increase in weapon range has been paralleled by scouting and the control of forces at longer and longer ranges; these in turn have opened up more avenues to gain information and confuse the enemy's picture by electronic means.

Tactics in the modern era
      The study of tactics has always emphasized actions between fleets that gain or challenge control of the sea lines of communications. That traditional emphasis is retained here, but in the 20th century three other types of combat at sea have demanded greater attention.

War from land to sea and from sea to land
      While navies have always had as their ultimate objective an influence over events on land, aircraft and missiles have extended the range and amplified the influence. Likewise, land-based systems have made their growing influence felt on warships and sea-lanes alike. Putting ground forces ashore from the sea by amphibious landing is an operation that has neither gained nor lost importance since the earliest galley warfare, but modern combined-arms tactics are quite different and require separate attention. A by-product of the extended range of modern weapons is the greater complexity of joint operations. The reorganization of many armed forces has been in large measure a response to the demand for well-coordinated operations.

Nuclear weapons (nuclear weapon)
      The United States, the Soviet Union, the United Kingdom, France, and China keep a considerable strategic deterrent force at sea in the form of submarine-launched ballistic missiles. The safeguarding or threatening of nuclear submarines has inspired a set of tactics unique in history. These tactics are among each nation's most closely guarded secrets and have never been used in anger, so that all knowledge of them is theoretical, based on mathematical computations, computer simulations, and constrained exercises at sea. This does not mean that such tactics, if ever used, will prove unsound. During the great transition from sail to steam and big gun, keen study by naval tacticians throughout the world developed the sound tactics that were finally practiced in World War I.

      War against trade is the war of an inferior navy that cannot compete for command of the sea but that, instead, dispatches raiders to deny the enemy its free use. These tactics of sea denial are those of predator and prey, of hunter and evader, and are as unique from the force-on-force tactics of major sea battles as are guerrilla war tactics from those of decisive land battle. With the maturity of submarines, these tactics have become so important that a separate section is devoted to them (see below Guerrilla war at sea: the submarine (naval warfare)).

Historical development
      In the following examination of the history of naval tactics, a shift in importance between elements of combat will be apparent. In galley warfare, sheer power dominated the outcome, and maneuver of numerous small ships, much as on land, contributed to its concentration. In warfare under sail, great firepower could be concentrated in individual ships, and doctrine, formations, and signal flags were means of controlling the slow-moving, wind-constrained formations. With battleships, steam power gave freedom to maneuver in any direction, and the range of the big guns allowed a concentration of fire from the whole formation. The defensive element came to prominence, symbolized by armour. Tactical decisions had to be made before the enemy was in sight, so that scouting became more evident as a tactical ingredient. Control had to be exercised over much greater distances, which expanded the possibilities of exploiting the means of control, notably through radio direction finding and code breaking.

      The growth in the tactical influence of scouting, anti-scouting, command and control, and countermeasures against command and control continued through the era of the aircraft carrier and into the era of the guided missile. These elements have become as important to tactical success at sea as firepower, consuming comparable thought and resources.

The age of galley warfare
 Galleys being relatively unseaworthy, war at sea among the ancients was always near land. Pictures of billowing sails notwithstanding, masts and canvas were stowed for battle, and oars were the means of propulsion. The most destructive weapon was a ram in the bow, which dictated a line abreast as the tactical formation. In the line abreast, two lines of opposing galleys approached each other head on, with the ram of each vessel unobstructed by the ships on either side. Momentum was the key to the ram's destructiveness, so that sprint speed—as much as seven or eight knots (nautical miles per hour, that is, eight to nine statute miles per hour or 13 to 15 kilometres per hour)—was as important as maneuver. Multiple banks of oars afforded speed, and the geometry of their arrangement fascinated naval architect-historians of later eras.

      Major battles comprised hundreds of ships on a side. Battles occurred because of the threat of invasion, so that many armed men were present. These participated as archers or boarders. Rome developed grappling hooks and the corvus (a long boarding plank spiked at the end) to secure the victim ship while disciplined legionnaires fought their way on board.

      Scouting the enemy formation was a subordinate issue, although contemporary descriptions indicated that formations and maneuvers, showing ingenuity and cunning, played a large part in the outcomes. Since battles were nearly impossible in foul weather, good visibility permitted the deployment of the lines abreast, often in two echelons, much as the commander intended. Descriptions of the battles (and the period was rich in them) were usually couched in the terms of land warfare—such as the routing of a flank, or an attempt to crush by encirclement. Galley tactics were so similar to land tactics that a reserve was actually held back—a practice that ever afterward was regarded in navies as a mistake. An inference cannot be drawn that a commander had tight control of his ships in action, however, and the correct image of a galley battle would be that of a wild melee, with oars smashed, hulls crushed, armour-clad soldiers drowned, losses enormous, and battles decisive with lasting consequences.

      The ultimate battle under oar was at Lepanto (Lepanto, Battle of) on Oct. 7, 1571. Fought between a combined fleet of the Mediterranean's Christian nations and the vaunted Turkish navy, this battle was reported in great tactical detail. More than 200 Christian oared vessels met 270 of the Turks' in the Gulf of Patras on the Ionian Sea. By this time, three to five guns were fitted in the bows of galleys, and harquebuses were fired by Spanish soldiers. But, as was usual in galley warfare, the outcome was decided by boarding and hand-to-hand fighting with sword and pike. The Christian fleet under Don John of Austria (Juan de Austria) prevailed in a bitterly contested donnybrook; losses to the Turks were placed at 30,000 killed, against 8,000 among the victors.

The age of fighting sail
      By the middle of the 17th century guns arrayed along the sides of fighting ships were the decisive weapon. Heavy guns required a gun deck and a short, sturdy hull, which were at odds with the galley's requirements of lightness and length. Thus, the shift to sail was a victory of fighting strength over maneuver. Tactically, sailing navies became victims of the wind's whim, but strategically they benefited from nearly limitless range and, compared to the frail galleys, greatly improved seakeeping.

      The column, or line ahead (ship-of-the-line warfare), became the logical tactical formation for bringing the most guns to bear. With all the ships of a battle line following one another, their guns could face the enemy line without obstruction. The three Anglo-Dutch Wars of 1652–74 saw the first closely studied battles of sail and gun. In them the column was as much a means for command and control as it was for concentration of fighting force, for as long as a fleet maintained station in line ahead, each ship separated by a scant 200 or 300 yards, cohesion was assured, maneuvers were coordinated, and any malingering by reluctant captains was obvious.

      The line was not a formation that permitted the concentration of fire, however, for naval guns in a rolling platform were effectively accurate at only about one-quarter of a mile, and the range for penetrability of shot was even less. In effect, engagements were decided within pistol shot, a battle line being a thin ribbon of death, miles long but scarcely 300 yards wide. When the English fought the Dutch in the 17th century, this was not considered a problem, because the tactics of both sides called for closing with the other aggressively. But in the 18th century their French opponents felt that their strategic interests lay in avoiding battle at close quarters, and in the Anglo-French wars the Royal Navy (Royal Navy, The) endured a long period of indecisive actions handicapped by a tactical doctrine so rigidly interpreted by courts-martial as to have become tactical dogma. These Fighting Instructions, though soundly conceived when first issued in 1653, were unsuited to this new opponent, for the implementing system of signals was unimaginative and constraining. Indeed, the two most admired tactical writers of the day, Paul Hoste and Sébastien François Bigot de Morogues, were French.

      Toward the end of the 18th century, the British admiral Richard Kempenfelt began to unshackle the Royal Navy with a better system of signaling. The new freedom of maneuver came finally and forever to be embodied in the tactical genius and personal inspiration of Horatio Nelson (Nelson, Horatio Nelson, Viscount), whose matchless victories at the battles of the Nile (Nile, Battle of the), Copenhagen (April 2, 1801), and Trafalgar (Trafalgar, Battle of) (Oct. 21, 1805) drew the enduring admiration of naval tacticians.

      Tactical study during this era concentrated on maneuver. “Breaking the line” of the enemy fleet was one aim, because this broke the enemy's tactical cohesion and made it possible to overwhelm individual ships by bringing greatly superior force to bear on each of them in turn. Popular aims were raking (firing a broadside the length of an enemy ship from across the bow or stern) or doubling (concentrating force by putting ships on both sides of the enemy line). The most reliable way to concentrate gunfire was to build it into ships vertically by stacking gun decks one over the other. Later tacticians demonstrated analytically what every fighting seaman of the seafaring era knew instinctively: with equal competency exhibited on both sides, not only would a two-decked frigate beat a lighter, one-decked corvette, and a three-decker beat a frigate, but the loser would come away having done very little damage to his bigger opponent. Whence came the big “ship of the line,” a three-decked ship that could stand in the line of battle and beat down smaller opponents while surviving to fight again.

The age of steam and big gun
      Tactics and technology complement each other, and there is no better period in history for studying their interrelationship than the shift from sail to steam in the 19th century. The shell gun (raised to naval attention during the Crimean War by the Battle of Sinope, Nov. 30, 1853) compelled navies to adopt the iron sheathing of hulls. This pointed the way to all-metal hulls (iron, then steel), which in turn both permitted and demanded as a response the installation of rifled, breech-loaded guns of major calibre. Concurrently, iron boilers and screw propellers made steam propulsion practical and gave great new freedom of maneuver. Navies were unfettered tactically from the wind, but only at the strategic price of having to remain within steaming range of coaling stations.

      The sweeping consequences of these and other technological innovations lacked the crucible of war in which to test them, for it was an era of Pax Britannica, with the maritime peace kept by the Royal Navy. The Monitor and the Virginia (at the battle of Hampton Roads (Monitor and Merrimack, Battle of the), March 8-9, 1862) marked the short-lived ascendancy of armour and the defense. This led to a brief revival of the ram and to some very speculative tactical concepts that looked outrageous in later days.

      But the superiority of defense at sea did not last long. The tactical–technical turning point came from the observation of a few battles in East Asia around the turn of the century and from an often overlooked bit of military technology. The battles were those of the Yalu (Sept. 17, 1894), the Yellow Sea (Aug. 10 and 14, 1904), and Tsushima (Tsushima, Battle of) (May 27–29, 1905), in which the gun regained primacy to such an extent that the Russian vice admiral Stepan Osipovich Makarov (Makarov, Stepan Osipovich) could confidently write, “A good gun causes victory, armour only postpones defeat.” The new technology was fire control, which enabled major-calibre rounds to be placed on target at five, then 10, and ultimately 15 miles.

      By World War I the tactical issues were settled. First, big guns would dominate, a burly battleship firing a battery of them in broadside. Second, although armour could “postpone defeat,” it was all but powerless against torpedoes; therefore, a destroyer screen was essential to protect the fleet. Third, a fleet cruised in compact formation but quickly deployed in column to fight. Since the opposing fleets would close with each other at a relative 40 miles per hour, a scouting line had to be thrown out well in front to report enemy movements by wireless. Despite the elephantine appearance of a line of battleships, there would not be a moment to lose when the enemy was sighted and no margin for error.

      A column of battleships was not like a column of sailing ships. With greater range and improved fire control, gunfire from most of the ships on each side could reach most of the ships on the opposite side, making concentration of firepower by a whole fleet feasible and expected. The advantage was worked out mathematically in what were called the “N-square law” and the “square law of attrition”: success would build on itself, so that any small advantage at the outset of an engagement would compound in favour of the superior force. With long-range gunnery, the advantage accrued fleet-wide, not merely ship by ship as in the days of fighting sail.

 A positional advantage could be added to this firepower advantage if the fleet “crossed the T” of the enemy, that is, if its own column crossed in front of the enemy column at a right angle and with the ships at the head of the enemy column within range of its guns. From this position at the top of the T, all the guns of the fleet could fire upon the head of the enemy column, while only the first enemy ships could return fire. This was the raking position sought by an individual sailing ship writ large, for at battleship gunnery ranges the whole force could concentrate successively on each enemy ship as it approached. It was reckoned that in fair weather and good visibility a fleet could destroy an enemy in the capped position in 20 minutes; or, if an enemy of equal strength could be surprised with unanswered fire within effective range for as little as five minutes, he would be demolished with little harm to the victor. There would be no leisurely approach, no chance to recover from a missed maneuver or a wrong turn. In fact, in practice the very swiftness of decision worked against maneuvering to cross the T. Much was made of the successful use of this tactic by the Japanese admiral Tōgō Heihachirō against the much slower Russians at Tsushima, but commanders at sea understood that the fast pace of battle worked against a T-crossing except by accident or surprise.

      With one salient exception, there were no unforeseen tactics in World War I. The exception was the ease with which a fleet could be surprised at sea. The Battle of Jutland (Jutland, Battle of) (May 31, 1916) was fought in great confusion, owing to a fog of smoke from the stacks and guns of 250 ships as well as the sloppy work of the commanders of the two scouting forces. The German commander, Reinhard Scheer (Scheer, Reinhard), twice had his T capped for lack of visibility; for the same reason, the British commander, Sir John Jellicoe (Jellicoe, John Rushworth Jellicoe, 1st Earl, Viscount Jellicoe of Scapa, Viscount Brocas of Southampton), twice was unable to exploit this, the ideal tactical position.

      The lesser engagements of the war were also marked by surprise, but from another source. At one time or another, both the Germans and British broke each other's codes. Special intelligence and attempts to entrap a weaker enemy were rife throughout the war, leading to surprise in each of the battles in the North Sea: Helgoland Bight (Aug. 28, 1914), Dogger Bank (Jan. 24, 1915), and Jutland itself.

The age of the aircraft carrier
      Early in World War II the primary instrument for delivering naval combat power became the aircraft carrier. The reason was range: aircraft could deliver a concerted attack at 200 miles or more, whereas battleships could do so only at 20 miles or less. The foremost tactical question during the transition in the 1920s and '30s was whether aircraft could lift enough destruction to supersede the battleship. Into the 1930s skeptics were correct that aircraft could not. But by the end of that decade, engines were carrying adequate payloads, dive-bomber and torpedo-plane designs had matured, carrier arresting gear and associated flight-deck handling facilities were up to their tasks, and proficient strike tactics had been well practiced. U.S. and Japanese naval aviators were pacesetters in these developments.

      There was a subordinate tactical question as well: could the enemy be found at the outer limits of aircraft range? The ability to attack fixed targets such as the Panama Canal or Pearl Harbor, and to achieve surprise in doing so, had been amply demonstrated in naval exercises as well as in battle, but finding, reporting, and closing on ships at sea was a greater challenge. Without detracting from the courage and skill of aviators, it may be said that effective scouting was the dominant tactical problem of carrier warfare and had utmost influence on the outcomes of the crucial carrier battles of the Pacific Theatre in 1942: the Coral Sea (Coral Sea, Battle of the) (May 4–8), Midway (Midway, Battle of) (June 3–6), the Eastern Solomons (August 23–25), and the Santa Cruz Islands (October 26). In those closely matched battles the quality of U.S. and Japanese aviators and their planes was virtually on a par. When the United States won, it did so by superior scouting and screening, owing in large measure to air-search radar and to the advantage of having broken the Japanese code.

      The command and control structure polished by the U.S. Navy (United States Navy, The) during the war was the third vital component, after scouting and the delivery of firepower. The tangible manifestation of modern C2 was the Combat Information Center, which centralized radar information and voice radio communications. By 1944 the tactical doctrine of coordinating fighter air defenses, along with the now much strengthened antiaircraft firepower on ships of the fleet, was so effective that in the Battle of the Philippine Sea (Philippine Sea, Battle of the) (June 19–21, 1944) more than 90 percent of 450 Japanese aircraft were wiped out in a fruitless attack on Admiral Raymond Spruance's 5th Fleet.

      The new tactical formation was circular, with carriers in the centre defended by an antiaircraft and antisubmarine screen composed of their own aircraft plus battleships, cruisers, and destroyers. For offensive purposes, a circle allowed a rapid simultaneous turn by all ships in a task group in order to launch and recover aircraft. For antiaircraft defense, the circle was shrunk in diameter as tightly as possible so that each screening ship, by defending itself, helped defend its neighbour.

      The new battle paradigm called for a pulse of combat power to be delivered in a shock attack by one or more air wings (air warfare). Despite every intention, though, air strikes against alerted defenses were rarely delivered as compactly as practiced, nor were they as decisive tactically as naval aviators had expected. In the five big carrier battles, one attacking air wing took out an average of only one enemy carrier. (Viewed strategically, this average, along with losses of aircraft of around 50 percent per battle, was enough to govern the pattern of the Pacific war.) Since it took more than two hours to launch, marshal, and deliver an air strike, it was difficult to attack before an enemy counterstrike was in the air. Successful command at sea depended as never before on effective scouting and communication, because in order to win a decisive battle, in World War II as in all of naval history, it was necessary to attack effectively first.

 Dominant though it was, carrier-based air power did not control the seas at night. With a modicum of success, the high-quality ships of Germany exploited the hours of darkness, especially during the winter months and in northern waters. In the bitterly contested campaign for Guadalcanal (Guadalcanal, Battle of) in the fall of 1942, guns ruled supreme at night and very nearly tipped the balance in favour of Japan. Expecting to be outnumbered as a result of the Five-Power Naval Limitation Treaty of 1922, the Imperial Japanese Navy had practiced night tactics assiduously in order, as they supposed, to whittle down the U.S. battle line during its slow march west across the Pacific. Having developed the matchless Long Lance torpedo, they installed it liberally in light cruisers and destroyers and developed tactics that would hurl a barrage of the long-range weapons in the direction of the enemy line—at the same time taking care not to expose the beams of their own ships to a counterstroke. Standard U.S. doctrine, on the other hand, called for fighting in column, employing guns as the primary weapon; the advantages that should have accrued to the Americans at night from superior radar were largely squandered. Between August 1942 and July 1943, in the cruiser–destroyer battles of Savo Island, Cape Esperance, Tassafaronga, Kula Gulf, and Kolombangara, Japanese night tactics prevailed. Not until mid-1943, with tactics attributed to Captain (later Admiral) Arleigh Burke that exploited the radar advantage in full, did the U.S. Navy redress the balance.

      Still, naval aircraft were the weapons of decision. Although the duels of the great carrier fleets received more attention, air strikes from sea to shore were as crucial in securing control of the seas. Strikes by the British at Taranto, Italy (Nov. 11, 1940), by the Japanese at Pearl Harbor (Pearl Harbor attack) (Dec. 7, 1941), and by the Americans in the South Pacific at Rabaul (Nov. 5 and 11, 1943) and Truk (Chuuk Islands) (Feb. 17–18, 1944) were as important to that end as were the more sensational fleet engagements.

      Also, in 1944 and 1945 the U.S. 3rd and 5th fleets, 27 fast carriers strong, took the war successfully against entire complexes of airfields in Formosa (now Taiwan), the Philippines, and Japan itself. A traditional tactical maxim, “Ships do not fight forts,” was suspended for the duration of the war.

      In the closing days of the war in the Pacific, the Battle of Okinawa served to indicate the nature of future combat at sea. By that time the U.S. Navy had reduced the Japanese Navy to impotence, and manned aircraft could not penetrate the sure American defenses. Nevertheless, during the three-month campaign for Okinawa (April–June 1945) the U.S. Navy lost 26 ships and suffered damage to 164 more—this time to Japanese kamikazes (kamikaze) (suicide pilots) flying out of airfields in Japan. The pilots who flew these one-way missions were delivering, in effect, human guided missiles. Kamikazes showed that missiles could, on sufficient occasion, get through otherwise impenetrable defenses. The missile-guidance technology exhibited in the late stages of the war in Europe indicated that missiles would be the kamikazes of the future. And the atomic bomb offered the ugly threat of “one hit, one kill” at sea.

The age of the guided missile
      At the end of World War II the supremacy of the U.S. Navy was as pronounced as that of the Royal Navy in the 19th century. With no enemy battle fleet to fight, it staked out the classic role of dominant navies throughout history—projecting its influence over land. Carrier-based aircraft, nuclear missile-carrying submarines, and amphibious-assault units extended that influence greatly. While the U.S. Navy served to link the North Atlantic Treaty Organization (NATO) across the Atlantic, its carrier-centred battle fleet stood ready to deliver sea power over the land. The principal opposing navy, that of the Soviet Union, was configured to challenge NATO's sea link and to confront U.S. aircraft carriers. The result was a new, asymmetrical tactical environment: a surface fleet facing a “fleet” composed mainly of submarines and land-based aircraft.

 On a smaller scale than the U.S.-Soviet naval competition, the Falkland Islands War between the United Kingdom and Argentina in 1982 exhibited the tactical environment of sea-based forces fighting land-based forces in the guided-missile era. In this, the only extended naval campaign after World War II, were observed several modern influences on naval combat. First, submarines were formidable weapons, not only in the sinking of an obsolescent pre-World War II cruiser (the General Belgrano, formerly the USS Phoenix) by a nuclear-powered attack submarine (HMS Conqueror) on May 2 but, less obviously, in the harrying of the whole British fleet by one Argentine diesel-electric submarine. Second, the nature, if not the full extent, of the threat of modern air-launched antiship missiles was seen in two Argentine attacks, first against the destroyer HMS Sheffield (May 4) and then, after penetrating fleet defenses, the supply ship Atlantic Conveyor (May 25). Also, a land-to-sea missile struck and damaged the destroyer HMS Glamorgan (June 12), presaging more strikes from land in future maritime wars. Third, the British relearned lessons of damage control and ship survivability, while the Argentines found that aircraft armed only with unguided bombs were outclassed by ships with surface-to-air missiles. Fourth, and perhaps most fundamental, both sides saw the crippling effect of inadequate scouting, for both were without first-line sea-based air surveillance. Both had to manage with makeshift sources, such as picket submarines and commercial aircraft for conducting reconnaissance.

      Despite the opposition, the British put forces ashore, maintained sufficient control of the airspace, and kept open the very long lines of supply, and this enabled them to retake the islands. A hasty prediction, made by some modern tacticians, that surface warships would be driven from the seas by modern missiles, did not prove true. Indeed, in the Falklands conflict, the recorded history of sea battles was reaffirmed. By their very nature, sea battles, once joined, still tended to be fast, deadly, and decisive. The commander of a fleet, always the most expensive component of an armed force, might, as Winston Churchill said of Jellicoe at Jutland, lose his ships and the war in an afternoon.

      In response to growing weapon range, the collection and delivery of tactical information continued to grow in importance and consumed more manpower and facilities. Radar and electronic intelligence satellites, over-the-horizon radars, large surveillance aircraft, and electronic signal collectors of utmost sophistication were all manifestations of this trend. These scouting devices had their antitheses in electronic jammers and countermeasures—in effect, antiscouting systems.

      In theory, modern communications (military communication) have permitted the coordinated delivery of missiles or air strikes at great ranges from vessels in dispersed formations, and the three components of naval combat power—firepower, scouting, and C2—can be highly dispersed. The major navies of the world, however, have continued to build aircraft carriers and cruisers, indicating a reliance on concentrated battle fleets and on strong defenses rather than dispersal to avoid destruction. The tactical value of concentrated as opposed to distributed power will ultimately depend on whether the historical trend observed above—that is, the growing range and lethality of naval weapons—continues. Battleships delivered salvos of gunfire in a continuous stream of destructive power, and the tactical effect was the N-square law of accumulating advantage. An aircraft carrier delivered a pulse of striking power that, if successful, destroyed about its own weight of the enemy. The classic naval tactic of attacking effectively first was vital. The question of the guided-missile age is whether one ship armed with missiles can sink more than one of the enemy, in spite of the enemy's defenses and ability to absorb punishment. If that is now the case, attacking first will be everything. Missiles that outrange the enemy's will be valuable, but even more valuable will be a compatible scouting system that detects and tracks the missiles close enough to their moving targets for the missiles' terminal guidance systems to lock onto them.

      The swift naval engagements of the Arab-Israeli War (Arab-Israeli wars) of October 1973 are enlightening. In that war Syrian and Egyptian Osa- and Komar-class gunboats were armed with Russian-made SS-N-2 missiles, which outranged the Gabriel missiles carried by the Israeli Saar boats. Both fleets were small in numbers and size, but speedy. Based on relative missile range and the obvious sufficiency of firepower on both sides, the Arab boats should have struck first and won handily. The Israeli Navy, however, had recognized its disadvantage and had developed tactics that emphasized better scouting and C2 as well as the use of chaff to deflect and neutralize the homing mechanisms of incoming missiles. This superior combination won decisively for them against both opponents. Therefore it could not be concluded that the advantage on paper of highly destructive and potentially decisive long-range missiles would win unless it was coupled with good sensors, modern C2 systems, expert command, and sound training.

Guerrilla war at sea: the submarine
      When submarines first went to sea early in the 20th century, they were immediately recognized as an extraordinary threat to surface ships. By World War II they were so effective against warships that they sank nearly as much aircraft carrier tonnage as was sunk by aircraft. Postwar attack submarines, nuclear-powered and armed with missiles and more advanced torpedoes, now pose an even greater threat to surface warships.

      In both world wars, submarines were also a serious threat to merchant shipping. In World War II, German U-boats nearly severed the lifelines to Great Britain, U.S. submarines successfully isolated Japan by nearly wiping out its merchant fleet, and, in the Mediterranean, British and Axis submarines vied in attempts to cut their opponents' communication with North Africa.

      Barring a brief period in 1942–43, when U-boats (U-boat) operated successfully in so-called wolf packs, submarines have always been solo performers, relying for successful attack on concealment and surprise rather than concentration of force. These tactics, quite different from fleet actions, are akin to guerrilla war at sea. The submarine stalks its prey while the target—a warship, merchant ship, or convoy—seeks clues as to its presence in order to take evasive action. Simultaneously, antisubmarine forces—destroyers, maritime patrol aircraft, or helicopters—are predators and submarines the prey. The tactical competition between the two is all search and screening, deadly hide-and-seek, for when the submarine closes, its target can do naught but try to escape the blow, and when antisubmarine forces localize a submarine, no help will come and it will either have to fight like a cornered beast or go silent and try to slip away.

      If submarines were able to protect sea lanes from attack, including air attack, then they would be serious candidates to succeed the aircraft carrier as the capital ship of the missile era. But as soloists their role has remained that of sea denial, not sea control, that of spoilers rather than champions of sea power. They are the latest in a long line of raiders of the deep, carrying on a tradition of isolation and stealth that began in the 16th century, when the English privateers Francis Drake (Drake, Sir Francis) and John Hawkins (Hawkins, Sir John) seized treasure ships at sea and raided Caribbean possessions in the teeth of the Spanish navy. Later, in the American Civil War, Confederate raiders such as Raphael Semmes (Semmes, Raphael) in the Alabama harried Northern shipping despite the overwhelming superiority of the Union navy.

 To the modern mind, a convoy has become a group of merchant ships protected against submarines. But, beginning in the age of fighting sail, there was a long tradition of protecting convoys against surface raiders, called “cruisers (cruiser).” In Some Principles of Maritime Strategy (1911), Sir Julian S. Corbett sorted out the separate roles of the battle fleet and the cruisers: the former established control of the seas by its concentrated presence or in a climactic battle; the latter either struck at lines of communication or attempted to fend off other raiders by operating alone or in small detachments. Corbett also traced the influence of long-range radio communication and predicted that this development would allow navies to bring such a swift concentration of superior power that the utility of surface raiders would come to an end. That he was right was proved by the fate of such surface raiders of World War II as the German battleship Bismarck, which was sunk by an overwhelming combination of bombs, naval guns, and torpedoes.

      Corbett fully appreciated the major role submarines would play against capital ships, but he did not grasp the extent to which submarines would become the cruisers of the future. Indeed, submarines have become the biggest threat to commerce, ahead of mines and aircraft. In addition, they are at or near the top of the list of effective killers of submarines. Guerrilla war is therefore the apt term for submarine warfare. The battle tactics are dispersion, surprise, strikes where the enemy is weak and unprepared, disappearance into the vastness of the ocean, and a continuing erosion of enemy morale and dilution of his resources.

Wayne P. Hughes, Jr.

Additional Reading
The most extensive work devoted exclusively to naval tactics is S.S. Robison and Mary L. Robison, A History of Naval Tactics from 1530 to 1930: The Evolution of Tactical Maxims (1942). Giuseppe Fioravanzo, A History of Naval Tactical Thought (1979; originally published in Italian, 1973), is an authoritative later analysis. Wayne P. Hughes, Jr., Fleet Tactics: Theory and Practice (1986), includes history but is more attentive to the art and science of tactics.William Ledyard Rodgers, Naval Warfare Under Oars, 4th to 16th Centuries (1939, reprinted 1967), interprets galley warfare. The history of tactics in the age of fighting sail as presented by Julian S. Corbett in his numerous works, from Drake and the Tudor Navy: With a History of the Rise of England as a Maritime Power, 2 vol. (1898, reissued 1988), to England in the Mediterranean: A Study of the Rise and Influence of British Power Within the Straits, 1603–1713 (1904, reprinted 1987), remains unsurpassed. A.T. Mahan, The Influence of Sea Power upon History, 1660–1783 (1890), available in many later editions, is a classic naval history. Studies of tactics in the age of steam and steel include Bradley A. Fiske, The Navy as a Fighting Machine, 2nd ed. (1918, reprinted 1988); Romeo Bernotti, The Fundamentals of Naval Tactics (1912; originally published in Italian, 1910); and W. Bainbridge-Hoff, Elementary Naval Tactics (1894). Richard Hough, The Great War at Sea, 1914–1918 (1983), explores the tactics of naval operations in World War I. The transition from battleship to aircraft carrier is discussed in Bernard Brodie, A Layman's Guide to Naval Strategy (1942). Studies of naval tactics in World War II are found in comprehensive histories, such as Samuel E. Morison, History of United States Naval Operations in World War II, 15 vol. (1947–62); S.W. Roskill, The War at Sea, 1939–1945, 3 vol. in 4 (1954–61); and Friedrich Ruge, Der Seekrieg: The German Navy's Story, 1939–1945 (1957; originally published in German, 1954; also published as Sea Warfare, 1939–1945: A German Viewpoint). Clark G. Reynolds, The Fast Carriers: The Forging of an Air Navy (1968, reprinted 1978), studies carrier operations.Wayne P. Hughes, Jr.

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Universalium. 2010.

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