On March 1, 1954, a deliverable H-bomb using solid lithium deuteride was tested by the United States on Bikini Atoll in the Marshall Islands. Operation BRAVO had a yield of 14.8 megatons of TNT - over double its expected yield. It was the largest American nuclear test. The fallout forced the evacuation of the surrounding islands. To this day, radiation levels on Bikini remain high enough to make the island uninhabitable. This test was a key factor in creating the Atmospheric Test Ban Treaty (1963).

See Lucky Dragon.