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,
Impact of the Korean War on the economy of the United States tensions with the Soviet Union, the Korean War further increased it. The Korean War cost the US$30 billion in 1953, which is equivalent to US$341 billion in 2011. During the last year of the war, annual war expenditure comprised about 14.1 percent of GDP. Approximately 34,000 Americans were killed in battle and about another 2,800 died from disease or injury, with total US casualties, which includes dead, wounded, and missing in action, adding up to 139,860. The "Korean War GI Bill" was implemented in 1952, eventually covering veterans between June 27, 1950 and February 1, 1955. It offered the same