1. War Consumes Europe The Alliance System Collapses The Alliance System Collapses A Bloody Stalemate Along the Western Front A Bloody Stalemate Along the Western Front The Battle on the Eastern Front The Battle on the Eastern Front

2. The Alliance System Collapses A Chain Reaction Austria declared war on SerbiaAustria declared war on Serbia Russia, Serbia’s ally, moved troops toward Austrian borderRussia, Serbia’s ally, moved troops toward Austrian border Germany declares war on Russia – August 1, 1914… 2 days later Germany declares war on FranceGermany declares war on Russia – August 1, 1914… 2 days later Germany declares war on France The von Schlieffen Plan Germany’s plan was to take France out of war before Russians had chance to fully mobilizeGermany’s plan was to take France out of war before Russians had chance to fully mobilize Quickest route to France through unguarded BelgiumQuickest route to France through unguarded Belgium This brought Britain into the war in defense of its ally BelgiumThis brought Britain into the war in defense of its ally Belgium Plan 17 The French Plan of WWI to immediately attack Germany and retake the Alsace-Lorraine territory that Germany had taken in the Franco-Prussian War and incorporated into the German Empire

3. The Alliance System Collapses (cont.) European Nations Take Side Central PowersThe AlliesCentral PowersThe Allies GermanyBritain GermanyBritain Austria-HungaryFrance Austria-HungaryFrance Ottoman EmpireRussia Ottoman EmpireRussia

4. A Bloody Stalemate Along the Western Front The Conflict Grinds to a Halt -Trench Warfare-Stalemate-Last Man Standing By September, Germans 30 miles outside ParisBy September, Germans 30 miles outside Paris – French drive the Germans back 60 milesFirst Battle of the Marne – French drive the Germans back 60 miles The Schlieffen Plan had failed and Germany bogs down into a stalemate along the Western FrontThe Schlieffen Plan had failed and Germany bogs down into a stalemate along the Western Front Germany would have to split its forces between France and RussiaGermany would have to split its forces between France and Russia

5. Trench Warfare

6. New Technology Results in Staggering Casualties Industry and warfare combine to make a lethal combination Machine guns Machine guns Tanks Tanks Airplanes Airplanes Submarines Submarines Poisonous gas Poisonous gas All take a grizzly toll on human life

7. The Results of Modern Weaponry Battle of Verdun (Feb. 1916) Battle of Verdun (Feb. 1916) Each side suffers more than 300,000 deathsEach side suffers more than 300,000 deaths Battle of the Somme (July, 1916) Battle of the Somme (July, 1916) British lose more than 20,000 in one day!British lose more than 20,000 in one day! More than ½ million lost by both sides by the end of this battle in NovemberMore than ½ million lost by both sides by the end of this battle in November

8. The Eastern Front The Central Powers Gain an Advantage Battle of Tannenberg (Aug. 1914) Battle of Tannenberg (Aug. 1914) Germans halt the Russian attack and drive them back in retreatGermans halt the Russian attack and drive them back in retreat More than 30,000 Russian troops killed during the 4 day battleMore than 30,000 Russian troops killed during the 4 day battle By 1916, Russia near collapse By 1916, Russia near collapse Shortages of supplies, food, guns (due to Russia’s lack of industry) put the army in impossible hardshipShortages of supplies, food, guns (due to Russia’s lack of industry) put the army in impossible hardship More than 2 million soldiers lost in 1915 aloneMore than 2 million soldiers lost in 1915 alone As long as Russia remained in the war, Germany was tied to fighting a two front war (Britain and America urge them to stay in war because of this) As long as Russia remained in the war, Germany was tied to fighting a two front war (Britain and America urge them to stay in war because of this)

9. The Eastern Front Germans have a hard time resupplying troops in the Eastern Front as the Russians had used the Scorched-earth Policy Germans have a hard time resupplying troops in the Eastern Front as the Russians had used the Scorched-earth Policy -burn everything as they retreated -burn everything as they retreated

10. The War Spreads Throughout the Globe As the war raged on, the conflict spread from Europe to AfricaAfrica The Middle EastThe Middle East AsiaAsia