Causes of War
The year World War I began in Europe.
1914
This type of warfare became common on the Western Front, leading to a stalemate.
Trench warfare
The common condition for soldiers in the trenches.
mud
America's official position at the start of World War I.
Neutrality
Germany's use of this policy led America closer to war.
What is unrestricted submarine warfare
Four main reasons, starting with nationalism, that led to the war.
Nationalism militaris, imperialism, and alliances
A new weapon that made the war especially deadly.
machine gun
Besides constant danger, another difficult condition soldiers face.
Disease or harsh conditions
A main reason many Americans wated to stay out of the war.
Tradition (avoiding European conflists) or trade interest
This proposed alliance between Germany and Mexico pushed the US toward war.
Zimmermann Telegram
The immediate event that triggered the start of the war.
Assassination of Archduke Franz Ferdinand
A weapon used by Germany that threatened American ships and lives.
submarines (U-boats)
The Western Front was known for this condition, meaning neither side could gain an advantage for a long time.
stalemate
This British passenger ship was sunk by a German submarine, killing Americans.
Lusitania
The group of powers the US had increasing economic ties and trade with.
Allied Powers
The two major alliances that Europe was divided into.
Allied Powers and the Central Powers
The name for Germany's policy of sinking all enemy ships, which escalated the war.
Unrestricted sumarine warfare
This front had more movement and fewer trenches that the Western Front.
Eastern Front
The agreement where Germany promised to limit submarine warfare after the sinking of the Sussex.
Sussex Pledge
The action taken by the US that formally brought them into the conflict.
Declaring war on Germany