World War I

1914-1918

World War I 1914-1918

Causes of the war (long-Causes of the war (long-term)term)

NationalismNationalism ImperialismImperialism AlliancesAlliances Military buildupMilitary buildup

Immediate cause of the warImmediate cause of the war

Assassination of Assassination of Archduke Franz Archduke Franz Ferdinand and his Ferdinand and his wife of Austria-wife of Austria-Hungary by Hungary by Gavrilo Princip of Gavrilo Princip of SerbiaSerbia

Key “Allied Powers”Key “Allied Powers”

Great BritainGreat Britain FranceFrance ItalyItaly Russia (pulled out of the war in Russia (pulled out of the war in

1917)1917) US (entered in 1917)US (entered in 1917)

Key “Central Key “Central Powers”Powers” GermanyGermany Austria-HungaryAustria-Hungary Ottoman EmpireOttoman Empire BulgariaBulgaria

Allied vs. Central PowersAllied vs. Central Powers

New technologies of war Trench warfare

Poison (mustard) GasPoison (mustard) Gas

Machine gunMachine gun

TankTank

Submarine (or U-boat in Germany)Submarine (or U-boat in Germany)

AirplaneAirplane

Manfred von Manfred von Richthofen—Red Richthofen—Red BaronBaron

Edward RickenbackerEdward Rickenbacker—American Ace—American Ace

The US tried to stay neutral, The US tried to stay neutral, but…but…

US lent money to the AlliesUS lent money to the AlliesGermany created a blockade around Germany created a blockade around

Britain and sank boats with any Britain and sank boats with any supplies we tried to give the Alliessupplies we tried to give the Allies

Britain also created a blockade Britain also created a blockade around Germany, starving about around Germany, starving about 750,000 civilians750,000 civilians

May 7, 1915—Germany sinks the May 7, 1915—Germany sinks the Lusitania, Lusitania, killing 128 Americanskilling 128 Americans

Germany had warned usGermany had warned us

FURTHER EVENTSFURTHER EVENTS

Sussex Sussex isis attacked in March 1916attacked in March 1916 Germany makes Sussex Pledge, Germany makes Sussex Pledge,

promising to warn ocean liners before promising to warn ocean liners before attacking themattacking them

Germany resumes full-scale U-boat Germany resumes full-scale U-boat warfare in February 1917warfare in February 1917

Zimmermann Note, Zimmermann Note, March 1917March 1917

In this note….In this note….

Germany asks Mexico Germany asks Mexico for support in exchange for support in exchange for helping Mexico get for helping Mexico get back territories lost to back territories lost to the USthe US

US enters the war—April 6, US enters the war—April 6, 19171917