No, they were kind of insignificant. Since the fighting was done mostly in trenches, the opposing forces never really got close enough for a flamethrower to be useful.
First World War.
around the end a few years after the tank
-37
flamethrowers, gas masks and posion gas, graneds,submarines and torpedos.
World War II, Korean and Vietnam Wars,
England won so theres your answer
It was Germany that first used flamethrowers as weapons in World War I.
A World War II veteran. The US military doesn't issue flamethrowers anymore. In addition to the above, it should be noted that flamethrowers were used in Korea and Vietnam, as well.
Wireless telegraphy was a major communications advancement during World War I. It allowed for communications between land and sea vessels.
radioField telephones
Flamethrowers are complex weaponry that must be handled with care. The flamethrowers are just gas tanks with a tube that leads to a nozzle where at the tip of the nozzle is an ignition point where a small spark of flame is produced. Once the gas is released by the trigger the gas will react with the ignition point and cause fire to be burned in that very direction that is appointed to. Flamethrowers were first used in WWI by the Germans, the first battle in which they were used being on February 26, 1915, against the French near Verdun. It's intitial reception caused terror among the troops - after all, it was a huge stream of fire being shot at them. However, they were bulky and difficult to use, not to mention that the operator was carrying a large pack filled with flammable gas on his back in the middle of a war, so never became a widely used weapon.
Hitler wasn't in charge during WWI. he came years later.