Strategy before WWI (except U.S. Civil War) Armies lined up facing each other Attacked with hand-to-hand combat or with single-shot guns Technological Advances by WWI Weapons of mass destruction (a few people or one person can kill lots of others quickly) Machine guns, poison gas, tanks Schlieffen Plan German strategy Invade France and occupy Paris by marching through Belgium (to avoid the French army already in place on the French-German border) Failed WWI Strategy Summary (in your own words):

The combined French, British, and Belgian Army stopped the German attack, but they couldn’t defeat them The armies “dug in” to protect themselves from each other This created about 400 miles of trenches dug from the North Sea to Switzerland They started out as simple foxholes, but became more elaborate as time went on The area between the trenches was called “no-man’s land” and barbed wire was strung to create obstacles for the enemy WWI Trenches Summary (in your own words):

Trenches—replica used in films and TV productions

Trenches—photos from WWI

Trenches—side view

Trenches—diagram

Trenches—today