1. What is militarism and how did the Industrial Revolution contribute to the arms race among European powers?

2. How did nationalism and imperialism increase tensions among European nations in the late 19th and early 20th centuries?

1. What event triggered the start of World War I and how did the alliance system turn it into a continental conflict?

2. What were the Central Powers and the Allies, and which nations led each side?

3. How did Germany's invasion of Belgium bring Britain into the war?

1. What territories did Germany and Austria-Hungary seize on the Eastern Front by 1915, and why did the offensive eventually stall?

2. How did the hardships of war on the Eastern Front lead to the collapse of the Russian government and Russia's withdrawal from the war?

1. What was trench warfare and what conditions did soldiers endure while living in the trenches?

2. Why did the major battles on the Western Front between 1914 and 1916 result in a stalemate despite massive casualties?

3. How did the entry of the United States in 1917 and Germany's failed 1918 offensive lead to the armistice?

1. What new weapons technologies were used in World War I and how did each contribute to mass casualties?

2. How did airplanes and submarines change warfare during World War I?

1. What forms of protest and resistance did soldiers engage in during World War I, and what caused them to mutiny or desert?

1. Why did the Easter Rebellion occur in 1916 and what were its immediate consequences?

2. How did the Easter Rebellion lead to the division of Ireland in 1922?

1. What conditions in Russia during World War I led to the abdication of Tsar Nicholas II and the rise of the Bolsheviks?

2. How did Vladimir Lenin and the Bolshevik Party change Russia's role in World War I and establish the Soviet Union?

1. How did World War I expand beyond Europe to become a truly global conflict?

1. What was the Armenian Genocide and why did the Ottoman government target Armenians during World War I?

2. How many Armenians died during the genocide and why has the Turkish government disputed this characterization?

1. How did British support help Arabs revolt against Ottoman rule, and what happened to Arab independence after the war?

1. What territories did Japan seize during World War I and how did its territorial frustrations after the war affect future conflicts?

1. How did World War I change the balance of power in Europe and the world?

2. What was the mandate system and how did it redistribute former German and Ottoman territories after the war?