WORLD HISTORY

Detailed explanation-1: -Military technology of the time included important innovations in machine guns, grenades, and artillery, along with essentially new weapons such as submarines, poison gas, warplanes and tanks.

Detailed explanation-2: -Heavy artillery, machine guns, tanks, motorized transport vehicles, high explosives, chemical weapons, airplanes, field radios and telephones, aerial reconnaissance cameras, and rapidly advancing medical technology and science were just a few of the areas that reshaped twentieth century warfare.

Detailed explanation-3: -New industrialized warfare led to massive casualties and a long, brutal conflict. The new weapons which were used at sea included submarines, torpedoes, and seaplanes. Submarines, known as U-boats in Germany, were usually equipped with torpedoes that could be fired underwater to sink enemy ships.