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,
History of the tank designs. In comparison, NATO adopted a defensive posture. The major contributing nations, France, Germany, the USA, and the UK developed their own tank designs, with little in common. After World War II, tank development continued. Tanks would not only continue to be produced in huge numbers, but the technology advanced dramatically as well. Medium tanks became heavier, their armour became thicker and their firepower increased. This led gradually to the concept of the main battle tank and the gradual elimination of the heavy tank. Aspects of gun technology changed significantly as well, with advances in shell design and effectiveness. Many