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,
Military equipment of Sweden during World War II high-tech firearms such as the Carl Gustav. The infantry had also been equipped with a great deal of rocket launchers for anti-tank warfare, and the availability of artillery had increased drastically with the World War II build-up. Throughout World War II, Sweden held the largest infantry army of the Nordic countries with more than 1,000,000 soldiers. At the beginning of World War II, Sweden had a very low number of motorized vehicles, instead relying horses for transportation. When the war broke out in 1939, Sweden had one armoured division consisting of merely 13 light tanks, only 3 of which were