What was impact of the use of machine guns and barbed wire during world war 1

While it made elimination of enemies more quickly, it actually prolonged the war.

Machine guns used a link chain that passed through the gun chamber and fired at an extreme rate. By WWI, the main gun was based off of the Vickers machine gun, which was extremely more moblie and had a faster rate of fire than the weapon previously (Gatling gun in the American Civil War).

Barbed wire had a lesser impact, as they allowed the slowing of movements of troops early in the war, but with the technological advancement of tanks and the such, the role of barbed wire dropped, though it was still used extensively throughout the European front.

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answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

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