WORLD HISTORY

Detailed explanation-1: -World War I was a war of trenches. After the early war of movement in the late summer of 1914, artillery and machine guns forced the armies on the Western Front to dig trenches to protect themselves. Fighting ground to a stalemate.

Detailed explanation-2: -Trench life involved long periods of boredom mixed with brief periods of terror. The threat of death kept soldiers constantly on edge, while poor living conditions and a lack of sleep wore away at their health and stamina.

Detailed explanation-3: -With the development of trench warfare, increasingly large artillery was developed to fire high explosive shells and smash enemy trenches, like this battery of 9.2 inch howitzers. The majority of casualties on the Western Front were caused by artillery shells, explosions and shrapnel.