In history, we are learning about the WW1 technology. WW1 was actually called 'the first modern war', because of the new technologies and weapons. The new weapons were: chemical weapons (like Mustard Gas), flamethrowers, U-boats, airplanes, zeppelins, artillery, machine guns, tanks, and more sophisticated bombs. Soldiers mainly fought in trenches, and we able to collapse at any moment. It was a very dangerous and deadly war.