Why was the first Battle of the Marne so significant? Schlieffen Plan plan War declarations Miracle at the Marne Consequences Stalemate Machine gun Two front war Trench warfare No man’s land Over the top Unrestricted submarine warfare

plan Defeat France quickly to the West then defeat Russia in the East Had to go through Belgium French attack Alsace and Lorraine

Allies Germany declares war on Russia on August 1, 1914 Germany invades Belgium on August 3, 1914 Begins Schlieffen Plan by attacking France first

Miracle at the Marne Britain declares war on Germany for violating Belgian neutrality Using airplanes Allies discover a break in German advance Use taxi cabs to move troops Breaks Schlieffen Plan in September 1914

stalemate Germany now required to fight a two front war Two armies build trenches in a race to the sea Neither side can advance

Machine gun Weapon dominates battlefield Too heavy to move so it was used defensively Prevents advances from other armies

Two front war Central Powers must now fight France on the Western Front And fight Russia on the Eastern Front

No man’s land Land between two opposing trenches Destroyed by artillery Barbed wire in front of trenches Defended by machine guns

Over the top Generals on both sides sent troops to attack no man’s land Slaughtered by machine guns when they went over the top of the trenches

Unrestricted submarine warfare Only way Germans can win Western Front is to cut off supplies to troops Begin unrestricted submarine warfare to prevent troops from being supplied