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,
World War II and American animation the word of this new strategic plan involving tactical long-range bombing. Winston Churchill viewed the film and convinced Franklin D. Roosevelt to see it. After Roosevelt watched the film, the United States began committing to long-range bomber airplanes and strategies. World War II and American animation World War II changed the possibilities for animation. Prior to the war, animation was seen as a form of childish entertainment. The attack on Pearl Harbor was a turning point in its utility. On December 8, 1941, the U.S. Army began working with Walt Disney at his studio, stationing Military personnel there for the