The policy of building up stronger and stronger fighting forces.
Militarism
Soldiers fought from long, narrow defensive ditches along the Western Front, creating a deadly stalemate.
Trench Warfare
This British Ship was sunk by Germany in 1915.
Lusitania
This treaty ended the war.
What is the Treaty of Versailles?
This country lost the most soldiers during the war
Russia
Agreements between friends to help each other in war.
Alliances
This psychological condition experienced by many soldiers caused anxiety, tremors, nightmares, and emotional trauma due to constant combat exposure.
Shell Shock
Germany resumed this naval policy in 1917, attacking ships without warning and helping push the United States into WWI.
Unrestricted Submarine Warfare
World leaders met in this 1919 gathering to negotiate peace terms after WWI.
Paris Peace Conference
He was the King of Germany during WWI.
Kaiser Wilhelm II
The domination of a weaker country by a stronger one for economic benefits.
Imperialism
Great Britain, France, Russia, Italy, and the U.S.
Allied Powers
This rapid-fire weapon could shoot hundreds of bullets per minute, making frontal attacks extremely deadly and contributing to trench warfare stalemates.
Machine Guns
This secret German message proposed a military alliance with Mexico against the United States if America entered the wa
Zimmermann Telegram
This was proposed as a peacekeeping organization following WWI and was part of the Treaty of Versailles.
League of Nations
This global conflict lasted from 1914 until this year, when fighting officially ended.
1918
This Austrian heir to the throne was assassinated in Sarajevo in June 1914, triggering the start of WWI.
Archduke Franz Ferdinand
German Empire, Austria-Hungary, the Ottoman Empire, and Bulgaria.
Central Powers
Weapons such as chlorine and mustard gas were used to blind, burn, or suffocate soldiers, leading to the use of gas masks on the battlefield.
Poison Gas
Food shortages, military defeats, economic problems, and dissatisfaction with Tsarist rule were major causes of this 1917 upheaval.
Causes of the Russian Revolution
France wanted security and punishment of Germany, Britain wanted balance and economic recovery, and the United States promoted this idealistic peace plan.
Wilson’s Fourteen Points
This country had an alliance with Germany before the war, but then defected to the other side.
Italy
This powerful feeling of pride and loyalty toward one’s nation helped increase competition and tension between European countries before WWI.
Nationalism
These 3 countries were not part of the original League of Nations.
US, Germany, Russia
First introduced by the British in 1916, these armored vehicles were designed to cross trenches, crush barbed wire, and protect soldiers from enemy fire.
Tanks
This 1917 uprising forced Tsar Nicholas II to abdicate and ended centuries of Romanov rule.
This article of the treaty stated that Germany was responsible for the war and had to pay reparations.
"War Guilt Clause" (Article 231)
Germany’s plan to quickly defeat France before turning to fight Russia was known as this military strategy.
Schlieffen Plan
The name of the Region known as being the Powder Keg of WWI. Lots of ethnic and nationalist tensions...
The Balkans
This organization helped the assassins who assassinated Archduke Franz Ferdinand of Austria-Hungary.
The Black Hand
This front stretched across France and Belgium, where trench warfare created a long stalemate between Allied and German forces.
Western Front
Led by Vladimir Lenin, this second 1917 revolution brought the Bolsheviks to power in Russia.
October Revolution (or Bolshevik Revolution)
The treaty forced Germany to do three major things.
Accept Blame for the War and pay Heavy Penalties.
Reduce its Military.
Lose Territory
The area between opposing trenches that soldiers crossed during attacks was known by this dangerous term.
No Man’s Land
It could be argued that this war in 1870 was a major influence for WWI
Franco-Prussian War
These three leaders dominated peace negotiations: Woodrow Wilson, David Lloyd George, and this French prime minister seeking revenge against Germany.
Clemenceau
Fighting on this front between Germany, Austria-Hungary, and Russia involved more movement and fewer trenches than battles in France.
Eastern Front
Russia left WWI after signing this peace agreement with Germany in 1918.
Treaty of Brest-Litovsk
This agreement ended the fighting on November 11, 1918, marking the end of active combat in WWI.
Armistice
World War I earned this nickname because people believed it would be the conflict to end all future wars.
"The war to end all wars"