Causes of WWI Militarism Alliances Nationalism Imperialism Assassination

Gavrilo Princip assassinates Archduke Franz Ferdinand of Austria Hungary

Central Powers: Germany Austria-Hungary Ottoman Empire Japan

The Allies: Russia France Serbia Great Britain United States of

America

Alliances

The Introduction of Modern Warfare

Machine guns Hand grenades Chemical warfare Submarine warfare

◦ The Germans perfected the use of submarines during the war.

Web of alliances a. Central Powers: ….b. Allied Powers: ….

US’ Initial response = Isolationism I feel so

alone

Europe in 1914

War Is HELL !!

Trench Warfare

Trench Warfare

“No Man’s Land”

Sinking of the Lusitaniaa. US trades with both sidesb. British Blockade North

Seac. utterseeboots

Lets Go For A Cruise The Lusitania: British

passenger boat sunk by a German U-boat. 128 of the 1200 dead passengers were Americans.

The Sussex ( 03-24-1916): after sinking the Sussex, the Germans pledged to warn before sinking.◦ This is known as the Sussex

Pledge. February 1, 1917,

Germans began unrestricted warfare again.

Russia leaves the war (1917)

1.) Communist revolution brings the Russian monarchy down. 2.) Vladimir Lenin claims power.3.) Russia signs treaty with Germany and leaves the war.

The Zimmerman Telegram

Germany sent a telegram to Mexico urging them to join the fight against the U.S. and in return Germany would ensure that Mexico would receive land that once belonged to them that the U.S. took.

The British intercepted the message and gave it to the U.S.

The Zimmerman Telegram

TO WAR! April 6, 1917:

President Wilson signs the declaration of war because of the Zimmerman Note.

Which country belongs in the blank box in the diagram?A. Austria-HungaryB. PolandC. RussiaD. Italy

WWI Central Powers

Germany

Which of the following would an isolationist support?A. Staying out of WWIB. Sending troops to fight in EuropeC. The Zimmerman telegramD. The League of Nations

What would be the best heading for the following list?◦ Unrestricted submarine warfare◦ Zimmerman telegram◦ Sinking of US ships◦ The Lusitania

A. Reasons Europe Went to WarB. Reasons the US Entered World War IC. Reasons for the Spanish-American WarD. Reasons Congress Passed the Chinese

Exclusion Act

Which of the following was glad that the US entered WWI?A. The Central PowersB. The Triple EntenteC. The BolsheviksD. Isolationists

The sinking of the Luisitania, the Zimmerman telegram, and unrestricted U-boat warfare were all factors that led toA. The start of WWI in Europe.B. The beginning of WWII.C. US involvement in Vietnam.D. The United States entering WWI.

Ms. Susan PojerHorace Greeley HS

Chappaqua, NY

The Most Famous Recruitment Poster

Uncle Sam—He the Man!

Don’t Mess with the U. S.

The Spirit of ’76’

1917 – Selective Service Act

24,000,000 men registered for the draft by the end of 1918.

4,800,000 men served in WW1 (2,000,000 saw active combat).

400,000 African-Americansserved in segregated units.

15,000 Native-Americans served as scouts, messengers, and snipers in non-segregated units.

U. S. Food Administration

U. S. Food Administration

U. S. School Garden Army

U. S. Shipping Board

U. S. Fuel Administration

YWCA – The Blue Triangle

Munitions Work

The Girls They Left Behind Do Their Bit!

Women Used In Recruitment

Hello, Big Boy!