Which event is often cited as the spark that ignited World War I?

Which technology was first widely used in warfare during World War I, changing the nature of combat?

What was the primary purpose of propaganda during World War I?

Which weapon was primarily responsible for the high number of casualties during World War I due to its use in trench warfare?

What was the name of the international organization formed after World War I in an attempt to maintain peace?

What treaty officially ended World War One?

What year did World War One officially end?

Which country was NOT part of the Allies during World War One?

What was a major technological advancement introduced during World War One?

Which of the following was NOT a reason for the United States entering World War One?

What was a major consequence of the Treaty of Versailles?

What was the main goal of the Treaty of Versailles?

Which country was held primarily responsible for the outbreak of World War I in the Treaty of Versailles?

What was the main purpose of the U.S. mobilization during World War I?

What role did women play during U.S. mobilization in World War I?

What did the U.S. government issue to encourage the purchase of bonds during World War I?

What did the U.S. Food Administration encourage Americans to do during World War I?

What did the policy of unrestricted submarine warfare allow Germany to do during World War I?

Which event prompted the United States to enter World War I in part due to unrestricted submarine warfare?

What was the main purpose of the Zimmermann Telegram?