Both the United States and Honduras claimed the Swan Islands until the United States dropped its claim. This was under the Guano Islands Act in 1972. The islands gained attention in the early 1960s. This was because of Radio Swan, which began broadcasting in May 1960 during preparation for, and during, the Bay of Pigs Invasion of Cuba. The station was removed from the islands in the late 1960s. Its main transmitter was transferred for use in the Vietnam War.