Enewetak Atoll is a large coral atoll of 40 islands in the Pacific Ocean, and forms a legislative district of the Ralik Chain

Ralik Chain

The Ralik Chain is a chain of islands within the island nation of the Marshall Islands. Ralik means "sunset". It lies just to the west of the country's other island chain, the Ratak Chain...

 of the Marshall Islands

Marshall Islands

The Republic of the Marshall Islands , , is a Micronesian nation of atolls and islands in the middle of the Pacific Ocean, just west of the International Date Line and just north of the Equator. As of July 2011 the population was 67,182...

. Its land area totals less than 5.85 square kilometres (2.3 sq mi), surrounding a deep central lagoon, 80 kilometres (49.7 mi) in circumference. It is the second westernmost atoll of the Ralik Chain, and is located 305 kilometres (189.5 mi) west from Bikini Atoll

Bikini Atoll

Bikini Atoll is an atoll, listed as a World Heritage Site, in the Micronesian Islands of the Pacific Ocean, part of Republic of the Marshall Islands....

. The U.S.