1914June- Arch-Duke Franz

Ferdinand is assassinated

July- Austria- Hungary declares War on Serbia

August- Germany declares War on Russia and France

August- Britain declares war on Germany

Christmas Truce

Poison gas is used for the first time

May-The Lusitania is torpedoed by German U-boats

May- Italy declares war on Austria- Hungary

Timeline1915

1916February-Battle of

Verdun Summer- U.S.

declares Neutrality (still)

March - Zimmermann telegram angers U.S.

April- The U.S. declares war on Germany

June- American Troops land in France

1917

1918March- Russia

withdraws from the war

June- American expeditionary Force begin to Fight

June- U.S. Victory at Belleau Woods

Nov.- Armistice End of WWI

June-Treaty of Versailles is signed

1919

1920U.S. Senate rejects

the Treaty of Versailles along with League of Nations

U.S. signs a different peace treaty with the Central powers

1921