a secret telegram (in code) sent by Germany as an attempt to form an alliance with Mexico if the US should enter WWI

• Lusitania

• Selective Service Act

• Zimmerman Telegram

• Treaty of Versailles

A British cruise ship attacked and sunk by a German submarine. Many civilians were killed , including many Americans. This attack was one reason for the US entering WWI.

• Lusitania

• The Maine

• Allied Powers

• Central Powers

Austra-Hungary, Germany, Bulgaria, and the Ottoman Empire

• alliance

• Central Powers

• Allied Powers

• militarism

An agreement nations make to support and defend each other.

• Allied Powers

• Central Powers

• Treaty of Versailles

• alliance

Building up one's military for protection

• militarism

• imperialism

• nationalism

• isolationism

the building of empires by expanding a country's territory/land outside its original borders. Adding new lands.

• nationalism

• militarism

• imperialism

• isolationism

Having a "strong" sense of PRIDE in one's country.

• militarism

• nationalism

• imperialism

• isolationism

Great Britain, Russia, France, Italy, Serbia, Belgium, and the United States

• Central Powers

• alliance

• Allied Powers

• World War I

A situation in a conflict in which neither side can make progress against the other.

• stalemate

• domino effect

• neutral

• alliance

Not taking side or getting involved in a conflict

• stalemate

• pacifist

• nationalism

• neutral