World War I () was caused by among newly advanced nations in Europe and a failure of diplomatic relations. The war European and American life, the economies of Europe, and planted the seeds for a world war.

Definition- building up , technology, and being prepared for war.

to be the top nation leads to an between European powers that used to stockpile guns, tanks, submarines, gas etc.

Definition- agreements between nations to each other if attacked and attack back

Definition- Extreme pride and to your nation. Loyalty to fight for one’s nation.

Examples:

- against Germany

(Franco-Prussian War)

- in military power and industrial growth

Definition- when a country seeks to other countries politically, economically and culturally

Europe’s competition to take over over overseas territory

Economic (natural resources)

were upset over actions of

The Serbian terrorist group plots to kill Archduke Franz Ferdinand of Austria

Gavrilo Princip the Archduke Franz Ferdinand and his wife on

World War One officially begins

-Up until this point, the U.S. wanted to in Europe, so we practiced a policy known as (not getting involved in the war)

-BUT we are forced to join the war because of…

German U-Boat () sinks British passenger ship

Leaves 1,198 people dead including U.S. citizens

Americans are

President Woodrow Wilson demands the Germans stop submarine warfare.

sends a telegram to offering to help Mexico take back territory from the United States in exchange for

The Zimmerman Telegram is by the United States

This event finally pushes the United States to join the war in 1917 on the side of the

New form of warfare in which soldiers fight from trenches dug into the battlefield– trading for extremely

- Area between the trenches that men had to cross to get to the enemy trench- the most dangerous area!