Refine your search

The results of your search are listed below alongside the search terms you entered on the previous page. You can refine your search by amending any of the parameters in the form and resubmitting it.

Select all Deselect all Add selection to lightbox
Large Small
Thumbnails per page
Operation Crossroads was a pair of nuclear weapon tests conducted by the United States at Bikini Atoll in mid-1946. They were the first nuclear weapon tests since Trinity in July 1945, and the first detonations of nuclear devices since the atomic bombing of Nagasaki on August 9, 1945.<br/><br/> The purpose of the tests was to investigate the effect of nuclear weapons on warships.