Zero

During the Washington Conference of 1920, the Americans took a hard look at their Navy. They had a Navy second only to the British, and like the Royal Navy, they had to protect interests in two oceans. Yet voluntarily they gave up building several ships and scrapped others.

The Battle of the Philippine Sea in the Marianas in June 1944 was marked by the destruction of huge numbers of Japanese aircraft with low losses to the United States Navy.