- Kwajalein Atoll
also called Kwajalong,coral formation in the Ralik (western) chain of the Republic of the Marshall Islands, in the western Pacific Ocean. The string of some 90 islets has a total land area of 6 square miles (16 square km) and surrounds the world's largest lagoon (655 square miles [1,722 square km]). The islets of Kwajalein, Roi, and Namur were the first of the Marshall Islands captured by U.S. troops in World War II. The atoll serves as a seaport, an air stop, and a U.S. military missile testing site. Pop. (1988) 9,311.
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