The POTUS Timeline
Military Action

Operation Castle "Romeo" thermonuclear test at Bikini Atoll

As part of Operation Castle, the United States conducted the Romeo thermonuclear test at Bikini Atoll on March 27, 1954.

The test was part of a series of high-yield experiments that advanced U.S. thermonuclear capabilities while contributing to international concerns about radioactive fallout and atmospheric testing.

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