Rickover withdrew his objections in early 1957 .
But the United States Department of Defense supported the British request , and Mountbatten won Rickover over during a visit to the UK in August 1956 .
Rickover withdrew Rickover 's objections in early 1957 .
But the United States Department of Defense supported the British request , and Mountbatten won Rickover over during a visit to the UK in August 1956 .