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. Between 1946 and 1958, 23 nuclear devices were exploded at Bikini Atoll.

It left a crater more than 1/2 mile wide and several hundred feet deep and ejected several million tons of radioactive debris into the air. This fallout forced the evacuation of the surrounding islands. To this day, radiation levels on Bikini remain high enough to make the island uninhabitable.

See Hydrogen Bomb.