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Technological escalation during World War II was more profound than any other period in human history. More new inventions, certainly as measured by such means as patent applications for dual-use technology and weapon contracts issued to private contractors, were deployed to the task of killing humans more effectively, and to a much lesser degree, avoiding being killed. Unlike technological escalation during World War I, it was generally believed that speed and firepower, not defenses or entrenchments, would bring the war to a quicker end.
To some degree the atom bombs dropped on Hiroshima and Nagasaki which brought about the surrender of the Empire of Japan in August 1945, seemed to validate this, at least in postwar propaganda.
Between the wars
After World War I many innovations in metals and chemicals had created withering firepower that made defenses effective. In France the lesson was translated into the Maginot Line which was supposed to hold a line at the border with Germany. France had also more, and much better, tanks than Germany as of the outbreak of their hostilities in 1940. As in World War I, the French generals expected that armour would mostly serve to help infantry break the static trench lines and storm machine gun nests. They thus spread the armour among their infantry divisions, ignoring the new German doctrine of blitzkrieg based on the fast movement using concentrated armour attacks (against which there was no effective defense but mobile anti-tank guns - infantry anti-tank weapons having not been invented yet).
Air power was a major concern of Germany and Britain between the wars. Amazingly, however, trade in aircraft engines continued, with Britain selling hundreds of its best to German firms - which used them in a first generation of aircraft, and then improved on them much for use in German aircraft.
The beginnings
Depending on one's frame of reference, one can reasonably assert that World War II began with the Japanese invasion of Manchuria in 1931, or as late as the last declarations of war between the United States and Germany in December 1941. Quite a bit occurred during this time to escalate technological conflict, most notably the upgrading and deployment of aircraft carriers by the U.S. and Japan in the Pacific, and invention of carrier-type aircraft such as the Mitsubishi Zero, largely considered the best plane of its time.
more on aircraft carriers and 1930s innovations in military technologies
Command and control
(Radio, radar, aerial photography, advanced use of cryptography and cryptanalysis)
War of attrition
(Shipping, submarines, bombing, the draft, civilian labour in Germany vs. USA)
Beaches
(Island hopping, seaborne invasions Dieppe, Sicily and Normandy)
Tanks
(Mass tank battles, e.g. Kursk)
Mobility
Extreme mobility (gliders, paratroops, bicycles, boats, landing craft,tanks)
Urban warfare
Horrifying city battles (Stalingrad, Berlin) and sieges (Leningrad, London) from ground and air.
See also
- List of jet aircraft of World War II
- Ultra
- Battle of the beams
- List of World War II electronic warfare equipment
- History of computers
- History of radar and the Cavity magnetron
- Military funding of science
- Penicilin, advances in medicine and the pharmaceutical industry
- Nylon and the petrochemical industry
- Liberty ships
- Operational Research
Sources
See also:
- Military technology during World War II - a comprehensive overview
"Technological escalation during World War II"