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 before World War II Japanese-American life before World War II For most Japanese Americans, life before World War II was the same as it was for Americans of any ethnic background until they were labeled The New Enemy. This title subjected them to legal restrictions in addition to the internment camps. Some of these legal restrictions included: A rigid curfew Bans on possession of firearms, war materials, short-wave radio receiving and transmitting sets and other contraband to Japanese-Americans. One Japanese American remembers the subtle forms of discrimination he experienced before the war, noting that they were, for the most part, minor inconveniences. He explained