Weapons
Dates
U.S. Involvement
Causes
Technology
100

Made it difficult to attack a trench

What is Machine Gun?

100

Lustiana sunk by Germans

What is 1915?

100

Percentage of Americans are European immigrants

What is 1 out of 7?

100

Assassination of

Who is Archduke Franz Ferdinand of Austria-Hungary?

100

effective in crossing trenches and wire entanglements

What are Tanks?

200

Were Part-Physical and Part-Psychological

What is Submarine

200

Germans resume UNRESTRICTED SUBMARINE attacks

What is 1917?

200

Percentage of Americans that have family in Europe

What is 2 out of 5?

200

the establishment began to have a greater influence on public policy

What is Militarism?

200

could kill the enemy underground or behind cover

What are High explosives?

300

Caused huge casualties

What is Chlorine and Mustard Gas?

300

First action was not until

What is April 1918?

300

Were related to and doing business with both sides 

What is Americans?

300

it resulted in increased tensions among European countries.

What is Imperialism?

300

to inflict agonizing suffering and to cause significant battlefield casualties.

What are Chemical gas?

400

Most important weapon

What is E-tool?

400

Germany will try to stop

What is 1916?

400

Had conflict damaged by Europeans on businesses and farms

What is the United States?

400

Caused building up their armies and led to increased militarism.

What is Nationalism?

400

primarily used for reconnaissance

What are Airplanes?

500

Made to protect soldiers

What is Trenches?

500

The Big Four at Paris Peace talk

What is 1919?

500

Stay out it's a ________ affair

What is European?

500

declared war on Serbia and Russia got involved to defend Serbia.

who is Austria-Hungary?

500

bringing down row after row of soldiers from a distance on the battlefield

What are Machine Guns?