




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




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 Lusitania
a. US trades with both sides
b. British Blockade North
Sea
c. utterseeboots


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.


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

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.
B.
C.
D.
Austria-Hungary
Poland
Russia
Italy
WWI Central
Powers
Germany

Which of the following would an isolationist
support?
A.
B.
C.
D.
Staying out of WWI
Sending troops to fight in Europe
The Zimmerman telegram
The League of Nations

What would be the best heading for the
following list?
◦
◦
◦
◦
A.
B.
C.
D.
Unrestricted submarine warfare
Zimmerman telegram
Sinking of US ships
The Lusitania
Reasons Europe Went to War
Reasons the US Entered World War I
Reasons for the Spanish-American War
Reasons Congress Passed the Chinese
Exclusion Act

Which of the following was glad that the US
entered WWI?
A.
B.
C.
D.
The Central Powers
The Triple Entente
The Bolsheviks
Isolationists

The sinking of the Luisitania, the Zimmerman
telegram, and unrestricted U-boat warfare
were all factors that led to
A.
B.
C.
D.
The start of WWI in Europe.
The beginning of WWII.
US involvement in Vietnam.
The United States entering WWI.
Ms. Susan Pojer
Horace 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-Americans
served 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!