Americans fought Americans fought in the in the

G.R.E.A.T. G.R.E.A.T. W.A.R.W.A.R.

Chapter 1: America and the Great War

G.G.“U-boats” are German submarines (“unterseeboots” in German)The 1915 sinking of the passenger ship Lusitania turned Americans decidedly against GermanyGermany ends unrestricted submarine warfare after the Lusitania, but resumes it in 1917

German U-boats German U-boats anger U.S.anger U.S.

Chapter 1: America and the Great War

R.R.

The convoy system saved Allied shipping after U.S. entry in 1917

Reaction: Reaction: convoy systemconvoy system

Chapter 1: America and the Great War

E.E.The Zimmerman Note (or Telegram) was sent from Germany to MexicoGermany promised to help Mexico win back Mexican lands lost in Mexican-American war (Texas, New Mexico, and Arizona) if Mexico joined Central Powers

Enter war after Enter war after Zimmerman NoteZimmerman Note

Chapter 1: America and the Great War

A.A.Alvin York was an American soldier from TennesseeLed attack on German machine gun nestAlmost single handedly killed 28 Germans and captured 132 others

Alvin York: heroAlvin York: heroChapter 1: America and the Great War

T.T.The Western Front in France was known for trench warfareThe machine gun made advancing on a defensive position like trenches virtual suicideThe invention of the tank would be a turning point in countering trenches

Trench warfare Trench warfare Chapter 1: America and the Great War

W.W.New weapons made World War I the deadliest war ever fought (until World War II)Submarines, tanks, airplanes, machine guns, and poison gas were some of the most notorious new weapons

Weapons more Weapons more advancedadvanced

Chapter 1: America and the Great War

A.A.Americans attacked the St. Mihiel battle front in September of 1918It became a key breakthrough in the German line that would lead to Germany’s surrender on November 11

American key American key victory at St. Mihielvictory at St. Mihiel

Chapter 1: America and the Great War

R.R.As America entered the war in 1917, Russian fell into revolutionCommunist leader Vladimir Lenin staged a coup d’etat in November 1917 (October on Russian calendar) The U.S.S.R. was created—the Soviet Union would become a key rival during the Cold War

Russian Russian RevolutionRevolution

Chapter 1: America and the Great War