This was the spark that started World War I. Archduke Ferdinand, the Austrian crown prince, was murdered on June 28, 1914, by a Serbian nationalist while visiting Sarajevo, Bosnia. Germany urged Austria-Hungary to fight and they went to war against Serbia; all of this due to Serbia wanting to expand

This was the president who was elected in 1912, and led the US into WWI. Later wrote a plan for post-WWI peace known as the Fourteen Points.

This Central Power empire during WWI, started the war with their invasion of Serbia after the assassination of Archduke Ferdinand on June 28, 1914 . It was made up of Austria, Hungary and several other nations and territories. After World War I it split up into several nations.

This Serbian rebel group tassassinated Archduke Ferdinand after several failed attempts.

This German Emperor led the Germans during WWI. In 1918 he was forced to step down by German Generals.

This new machinery used by the Germans in sea warfare, to attack British and American supply ships in the North Sea and the Atlantic Ocean.

This cause of World War I was based on an intense pride in one's nation- OR the desire of an ethnic groups to be self-government (self-determination!)

This alliance during WWI included the United States, Great Britain, France, Russia and Italy (switched to the Allied Powers in 1915). (The blue countries of the East and West on map above)

This is the plan for post-World War I outlined by President Wilson in 1918. This plan called for self-determination (countries in Africa and Asia govern themselves), freedom of the seas, free trade, end to secret agreements, reduction of arms and a league of nations.

This intercepted note from the German foreign minister to the Mexican government offered, territories in Texas, Arizona and New Mexico for Mexico. The note also confirmed the new policy of unrestricted submarine warfare by Germany against the Allied Powers. This helped turn Americans against Germany in WWI.

This British passenger ship was sunk by German U-boats in 1915, carrying civilians and ammunition to Britain from the U.S. The event turned American opinion against Germany.

This style of warfare was common in WWI, due to the invention of the machine gun and heavy artillery. It included digging long trenches, separated by barbed wire and a no mans land.

This was the agreement between the Allies and Central Powers that ended the fighting after WWI. It began at 11/11/1918 at 11:11 am. This marked a victory for the Allies and stated that the Central Powers lost. Germans would later look at this as "the stab in the back."

This term refers to the payments Germany was required to make under the Treaty of Versailles.

This intergovernmental organization lasted from 1919-1946, was founded after the Paris Peace Conference. It did not work effectively to prevent WWII.

This clause of the Treaty of Versailles placed all blame for WWI with Germany and its allies. This forced Germany to pay reparations for World War I.

This cause of World War I resulted from the competition among European nations for colonies in Africa and Asia from 1880-1914. This created tension, especially between Germany and Great Britain.

This was a major cause of WWI. Two major alliances formed the Triple Alliance (Germany, Austria, Italy) and the Triple Entente (France, England, Russia). This alliance system made world war likely, by drawing all countries into a small war.

These are the four long term and immediate causes of World War I. Militarism, Alliances, Nationalism, and the assasination of the Archduke Franz Ferdinand

This alliance was made Germany, Austria-Hungary and Italy in the years before WWI. IN RED ABOVE

This alliance between Great Britain, France and Russia in the years before WWI. IN BLUE ABOVE

This was a major alliance at the 'center' of Europe during World War I, made up of Germany, Austria-Hungary, Bulgaria, and Ottoman Empire (Turkey). It was formerly known as the Triple Alliance before the war. SHOWN ABOVE IN RED.

This was a major alliance during World War I made up of Britain, France, Russia, and the United States. It was known as the Triple Entente (a French word) before the war.

This was a major front in World War I. A line of trenches and fortifications in World War I that stretched without a break from Switzerland to the North Sea. This is where most of the fighting happened in World War I.

This was Germany's military plan at the outbreak of WWl. The plan was for troops to rapidly defeat France and move east to defeat Russia.

This was a front in WWI. The region of fighting happened along the German-Russian Border where Russians and Serbs battled Germans, Austrians, and Turks.

This was a British military attack in 1915 during World War I against the Ottoman Empire at Dardanelles, to bring supplies to Russia. The mission failed with high casualties by the British as shown in movie with Mel Gibson called "Gallipoli."

This was the policy that the Germans announced on January 1917 which stated that their submarines would sink any ship in the British waters.

Restricting the amount of food and other goods people may buy during wartime to assure adequate supplies for the military

These are ideas or information that usually designed by a government to influence public opinion, often times to persuade a people to go to war.

This area was considered "powder keg of Europe."

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This cause of World War I was a policy of building up strong armed forces to prepare for war.

Final set of demands; do this... or else

Germany promised Austria-Hungary unlimited support in their invasion of Serbia

This nation wanted to unite all the southern Slavs

Deadly weaponry that causes trench warfare; considered a "weapon of mass destruction"

ditches or trenches are dug on opposing sides, with "no man's land" in between. Conditions were muddy, dangerous and disease ridden

what France was motivated by at the Paris Peace Conference

Britain's policy of their navy being larger than that of any two others combined

The leaders of the four victorious powers

nations join together in one large organization to work together to stop the possible aggression of one nation; replaced dangerous alliance system

a group of people who feel a sense of belonging can create their own nation-state

this country left the war due to communist revolution in 1917

Joined the war in 1917

area created to give Poland access to the sea; separated East Prussia from the rest of Germany

The most famous American battles of WW1 were the Battle of Cantigny fought on May 28, 1918, Chateau-Thierry fought on June 3, 1918, the Battle of Belleau Wood fought between June 6, 1918 - June 26, 1918, the Battle of St. Mihiel that was fought on September 12, 1918.

Ace of Ace's: Germany's most feared airplane pilot; shot down 80 planes before he was killed in April 1918; Manfred von Richthofen

Nickname for the American Expeditionary Forces serving in WW1: of historical origin- either because of the piping on Continental soldiers covered in clay (giving a dough like appearance when wet) or the Mexican War (covered in dirt trekking through Mexico)

SCOTUS decision that speech can be suppressed in time of war

World War I officially ended with the signing of this treaty on June 28, 1919. Negotiated among the Allied powers with little participation by Germany, its 15 parts and 440 articles reassigned German boundaries , forced them to disarm, give up colonies abroad, assigned liability for reparations (had to pay war debts), and the war guilt clause (had to admit fault for starting the war). After strict enforcement for five years, the French assented to the modification of important provisions. Germany agreed to pay reparations under the Dawes Plan and the Young Plan, but those plans were cancelled in 1932, and Hitler's rise to power and subsequent actions rendered moot the remaining terms of the treaty.