The flag of Bikini Atoll, a member of the Marshall Islands, is a flag closely resembling the flag of the United States and was adopted in 1987. The flag is symbolic of the islanders' belief that a great debt is still owed by the United States to the people of Bikini because in 1954 the United States government detonated the Castle Bravo H-bomb on the island, poisoning islanders and others with nuclear fallout.