Causes of the War
Trench Warfare
U.S. Entry into the War
Russian Revolution
End of the War and Treaties
100

The political strategy of forming secret defense agreements between nations is known as this.

Alliances

100

What are wood beams and sandbags?

Trenches were reinforced with these materials to prevent collapse.

100

t the start of World War I, the U.S. followed this policy regarding European conflicts.

Neutrality

100

Before the revolution, Russia was ruled by this absolute monarch.

Tsar Nicholas II

100

What is November 11, 1918?

World War I officially ended with an armistice on this date.

200

Germany’s biggest fear before the war was encirclement by these two enemy nations.

France and Russia

200

What is trench foot?

This disease, caused by poor trench conditions, led to painful swelling and potential amputation of soldiers’ feet.

200

President Woodrow Wilson’s justification for U.S. entry into the war was to make the world safe for this.

Democracy

200

This 1905 event saw peaceful protestors being shot by the Tsar’s soldiers, fueling revolutionary anger.

Bloody Sunday

200

The Treaty of Versailles negotiations were largely controlled by the leaders of these four nations.

France, Britain, the U.S. and Italy

300

This country switched sides, despite originally being allied with Germany and Austria-Hungary.

Italy

300

A common technique to dig trenches safely without exposing soldiers to enemy fire.

Tunneling

300

What is the Selective Service Act?

This act allowed the U.S. to quickly expand its military by drafting soldiers.

300

One major reason for the revolution was the Russian army’s poor condition in World War I, with many soldiers lacking these basic supplies.

Food, shoes and weapons

300

The map of Europe changed drastically after World War I, leading to the creation of these new countries.

Poland, Finland, Yugoslavia and Czechoslovakia

400

This empire saw itself as the protector of Slavic nations, including Serbia, before World War I.

Russian Empire

400

One of the biggest psychological challenges for soldiers living in the trenches was this condition, caused by constant shelling.

Shell Shock

400

American troops fighting in World War I were commonly referred to by this nickname.

Doughboys

400

What is the Treaty of Brest-Litovsk? 

After the revolution, Lenin’s Bolsheviks withdrew from World War I by signing this treaty.

400

Germany was forced to pay these large financial penalties as part of the Treaty of Versailles.

War reparations

500

Historians debate whether this country deliberately sought war, believing early conflict would improve its chances of victory.

Germany

500

What are trench raids?

These nighttime operations involved soldiers sneaking into enemy trenches for reconnaissance or sabotage.

500

The arrival of fresh U.S. troops had this impact on the morale of Allied forces.

Major boost in confidence and energy

500

Who are the Red Army (Bolsheviks) and White Army (anti-communists)?

Following the revolution, a civil war broke out between these two factions.

500

Although the League of Nations was created to maintain peace, it struggled to be effective because this major country never joined.

The United States