This alliance in World War I included Germany and Austria-Hungary, opposing the Allied Powers.
What is the Triple Alliance?
This economic crisis began in 1929 and had global repercussions throughout the 1930s.
What is the Great Depression?
This armed rebellion from 1910 to 1920 aimed for political and social reform in Mexico, led by figures like Pancho Villa.
What is the Mexican Revolution?
These weapons, which fired rapidly, made Calvary charges obsolete and contributed to trench warfare in WWI.
What are machine guns?
The event depicted here ultimately led to war.
What is the assassination of Archduke Franz Ferdinand?
This coalition in World War I consisted of Great Britain, France, Italy, Russia, and later the US.
What are the Allied Powers?
This event in 1929 marked a significant downturn in stock prices, leading to widespread financial loss and despair.
What is the Stock Market Crash?
This revolutionary party, led by Vladimir Lenin, took control of Russia in 1917, marking a significant shift in power.
What are the Bolsheviks?
Soldiers would have especially feared barrages from these types of weapons, as they would have pelted the battlefield with destruction and death.
What is artillery?
This ideology contributed to the outbreak of war through feelings of superiority over other groups of people.
What is Nationalism?
This pre-war alliance consisted of France, Britain, and Russia.
What is the Triple Entente?
Implemented by Franklin Roosevelt, this series of reforms aimed to alleviate the economic hardships of the 1930s.
What is the New Deal?
Formed in the late 1800s, this group aimed for greater democracy and self-rule in India, led by Hindu nationalists.
What is the Indian National Congress?
These types of attacks required soldiers to be ready at any moment in their trenches with specialized equipment to block poison.
What is poison gas?
The leader seen here contributed to war through his insecurity and ambition.
Who is Kaiser Wilhelm II?
The sinking of this British passenger ship in 1915 shifted American sentiment against Germany.
What is the Lustiania?
This was the longest battle in WWI and cost between 700,000 and 1,250,000 lives.
What is the Battle of Verdun?
This conflict from 1918 to 1920 saw the Red Army defend the Bolshevik government against various anti-Bolshevik forces.
What is the Russian Civil War?
Used at first primarily for reconnaissance in the Great War, by the end of the conflict they would have had machine guns and bombs on them as well.
What are airplanes?
This region was the first victim of Japanese imperialism and authoritarianism in the interwar period, and some may say was the true start of World War II.
What is Manchuria?
This German military strategy aimed for a rapid victory over France by invading through Belgium.
What is the Schlieffan Plan?
The hopes for the Schlieffen Plan died here at this battle that may have cost as many as half a million lives.
What is the First Battle of the Marne?
This protest saw Gandhi leading people to the sea to nonviolently defy a British tax.
What is the Salt March?
This soldier is demonstrating this psychological impact of the fighting in the Great War.

What is shell shock?
These two provinces were a major cause of World War I, because the loss of them in the Franco-Prussian War really irritated the French.
What are Alsace and Lorraine?