Understanding World War 1

U-Boats

• submarines targeting Allied ships

• surface ships used by the Allies

• aircraft carriers in the Pacific

• destroyers protecting merchant vessels

Poison Gas

• weapon causing severe injuries

• type of chemical used in agriculture

• substance used for cooking

• natural gas for heating

Trench Warfare

• from deep ditches to defend positions

• using tanks to break enemy lines

• conducting aerial bombardments

• engaging in hand-to-hand combat

Woodrow Wilson

• President during World War 1

• President during World War 2

• President during the Great Depression

• President during the Civil War

Militarism

• of military forces and arms

• the promotion of peace and diplomacy

• the reduction of military expenditure

• the establishment of international treaties

Imperialism

• for colonies and global dominance

• for economic independence

• for cultural assimilation

• for military isolation

Machine Guns

• weaponry that changed battle tactics

• a type of artillery used in World War I

• a handheld firearm for personal defense

• a weapon primarily used for hunting

Alliances

• between countries for mutual defense

• agreements for trade and commerce

• political unions for economic growth

• military pacts for territorial expansion

Lusitania

• a British passenger ship that sank in 1915

• a major battle in World War I

• influenced U.S. to join the war

• a treaty that ended World War I

Assassination of Archduke Franz Ferdinand

• the beginning of World War 1

• the end of World War 1

• the start of the Cold War

• the signing of the Treaty of Versailles