A New Kind of Conflict: Review Which new weapon was partly responsible for bringing the United States into the war? u-boats

Name 3 ways that World War I was different from other wars War on multiple fronts Eastern and Western fronts 2. New weapons Machine guns, artillery, tanks 3. New technologies Radios and telephones Planes

Terms Western Front: key area of fighting (theatre of war) in Western Europe where Germans dug and defended trenches to avoid losing territory already gained in France; the British and French, unable to break through, began to build their own. stalemate: dead-lock, neither side can defeat other took place on western front in France for 4 years

poison gas: gas first used by Germans and then the Allies to blind, choke victims, and or burn potentially deadly uncertain weapon due to wind shifts

trench warfare: used on the frontline and communication routes often constructed in a zig-zag pattern to avoid direct fire

zeppelin: large gas-filled balloons with machine guns used to bomb English coast easy to shoot out of sky

u-boats: German submarines used to sink ships carrying supplies to Britain