The Western Front was slow because of
Trench Warfare
What event was the spark that started WWI
Which region was known as the "powder keg of Europe" before the outbreak of World War I due to its ethnic tensions and political instability
The Balkan Peninsula
Which three countries had the most problems or objections with the Treaty of Versailles after World War I
Germany, Italy, and Japan
The Russians pulled out of WWI because
A Political Revolution
The main reason the United States entered the war was due to
German U-Boats Resumed sinking ships
Although German U-boats sank many ships during World War I, which sinking angered Americans the most and pushed the U.S. closer to entering the war
RMS Lusitania
During WWI propaganda was used to do what
Glorify War
What were the big 3 countries for the Central Powers at the start of WWI
Germany, Austria Hungary, Ottoman Empire (turkey)
What were the big 3 countries for the Allied Powers at the start of WWI
Russia, France, Britain
Italy switched sides at the beginning of the war, fighting against the Central Powers for
Land
Which battle is considered the greatest and longest battle of World War I, lasting from February to December 1916 and resulting in massive casualties
Battle of the Somme
What was the name of the treaty that officially ended World War I in 1919
Treaty of Versailles
Who was the President of the United States during World War I
Woodrow Wilson
What was the Zimmermann Telegram? Why did it anger the United States during World War I?
A secret German proposal to Mexico to join the war against the U.S. in exchange for lost territory
What was the most important contribution of American troops to the outcome of World War I
Their large numbers and fresh energy, boosting Allied morale and strength
How did many Americans feel about European affairs before the outbreak of World War I
They wanted to stay out of European conflicts and focus on issues at home
Name 3 new technology in WWI
Machine guns, Zeppelins, U-Boats, Flame throwers, tanks, planes, chemical weapons