American military technology during World War II US cruisers and battleships had their guns directed using information gathered from the ship's radar. American military technology during World War II American military technologies developed during World War II became more advanced and specialized as the war progressed. The technologies produced ranged in complexity from relatively simple items such as small arms and armored vehicles, including tanks, to more complex items such as the atomic bomb. The latter, produced under the secretive Manhattan Project, proved to be an incredibly powerful weapon that revolutionized warfare and was used to end the war. Other technologies, such as the M4 Sherman tank,
Japanese-American life after World War II Japanese-American life after World War II On February 19, 1942, President Franklin D. Roosevelt signed Executive Order 9066 relocating 110,000 Japanese Americans from the West Coast into internment camps for the duration of the war. The personal rights, liberties, and freedoms of Japanese Americans were suspended by the United States Government. After World War II in the year 1948, President Truman signed the Japanese-American Claims Act. This act was a way to compensate Japanese Americans for their economic losses due to their forced evacuation. "Although some $38 million was to be paid out through provisions of the act, it would