

Over the course of World War II, the MISLS recruited hundreds of students from mainland internment camps and from Hawaii. President Woodrow Wilson responded by increasing the standing army to 140,000 men. In December 1914 General Leonard Wood helped to form the National Security League and began arguing for conscription as a means of increasing the size of the US Army. MIS Language School opensĪs World War II intensified in the Pacific, the United States was in dire need of Japanese linguists and secretly recruited Nisei soldiers in 1941 to enroll in its Military Intelligence Service Language School (MISLS), first at the Presidio Army post in San Francisco, then later at Camp Savage and Fort Snelling in Minnesota. The regular army was backed up by the 27,000 troops in the National Guard. On July 26, 1941, Roosevelt froze Japanese assets in the United States, and followed up a month later with an oil embargo on Japan, essentially ending commercial relations between the two countries. This only fueled Japanese aggression, leading to Japan’s September 1940 invasion of French Indochina (now Vietnam). The British and the Dutch also embargoed exports to Japan from their Southeast Asian colonies, putting the Japanese in an economic stranglehold. This included closing the Panama Canal to Japanese ships in 1940, and embargoing scrap iron and steel exports to all destinations other than Great Britain and Western nations. US wages economic warfareĪlthough Roosevelt initially avoided military conflict, the United States began to wage economic warfare on Japan, imposing stringent economic sanctions. This authorized the President to sell, transfer or lease war goods to the government of any country whose defenses he deemed vital to the defense of the United States. Japan invaded Manchuria in 1931 and China in 1937, and the Nazi defeat of France in 1940 and possible collapse of Britain to Axis forces prompted Congress to repeal provisions of the Neutrality Act. The alliance sent a direct warning to the United States that any military intervention would lead to battles both in Europe and the Pacific.Įmpowered by the pact, Axis countries continued their assaults in the Pacific and Europe. 27, 1940, Japan, Germany and Italy agreed to the Tripartite Pact, pledging mutual support if attacked by a nation not already at war. 5, 1940, FDR began preparing for military involvement by declaring a state of national emergency, increasing the size of the Army and National Guard, and authorizing the Selective Training and Service Act of 1940 - the first peacetime draft in US history.

Still, despite the United States’ official proclamation of neutrality on Sept. Roosevelt knew Americans would not support another European conflict, having suffered numerous casualties during World War I, so he resisted a rush to war. Rooted in an isolationist stance, the United States remained neutral.
