USA HISTORY

Detailed explanation-1: -America opposed Tokyo’s expansionist policies in China and Indochina. On July 26, 1940, the U.S. government passed the Export Control Act, cutting oil, iron and steel exports to Japan.

Detailed explanation-2: -On September 27, 1940, Japan signed the Tripartite Pact with Germany and Italy, thus entering the military alliance known as the “Axis.” Seeking to curb Japanese aggression and force a withdrawal of Japanese forces from Manchuria and China, the United States imposed economic sanctions on Japan.

Detailed explanation-3: -Joining in widespread international condemnation of Japan’s aggression, the United States circumspectly supported China. President Roosevelt approved $25 million in military aid to China on 19 December 1940, permitting the Chinese to purchase one hundred P 40 pursuit aircraft.

Detailed explanation-4: -Rather than send troops, US and European leaders called for economic sanctions and warned that harsher steps would follow if Japan continued its aggression. President Roosevelt banned the exports of some armaments and aircraft parts to Japan in 1940 after its leaders formed a military alliance with Germany and Italy.

Detailed explanation-5: -Responding to Japanese occupation of key airfields in Indochina (July 24) after an agreement between Japan and Vichy France, the U.S. froze Japanese assets on July 26, 1941, and on August 1, it established an embargo on oil and gasoline exports to Japan.