answersLogoWhite

0

The US was "involved" from 1937 on. This included the sinking of a US Naval vessel, the Panay, by the Japanese. The US also "loaned" ships and war materials to countries at war, known as Lend-Lease. The US actively entered the war on December 7, 1941 when the Japanese attacked the US in Hawaii.

User Avatar

Wiki User

10y ago

What else can I help you with?