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Assassination of Archduke Franz Ferdinand
Archduke Francz Ferdinand of Austria was assassinated by Gavrilo Princip; a Boshian Serb at the Latin Bridge in Sarajevo. In response to the assassination of the heir presumptive to the Austrian-Hungarian throne, Austria declared war on Serbia.The start of the First War begun. -
WWI Begins and the U.S reaction
When war began the U.S president Wilson declared a state of neutrality, not wanting to drag Americans into war. Woodrow Wilson announced that the United States would stay out of European affairs. -
Sinking of the Lusitania
A British ocean liner was torpedoed by a German U-Boat 11 miles off the southern coast of Ireland and inside the declared ''zone of war.'' International uproar led by the U.S resulted in German U-Boat warfare for 2 years. -
Arabic Pledge
After the unexpected German submarina attack on the British ship Arabic, the German government issued the Arabic Pledge. Its purpose was to limit German unrestricted submarine warfare, yet the Germans did not abide to this pledge. -
Pancho Villa Raids New Mexico
General Villa ordered nearly 100 mexican members of his revolutionary group to make a cross-border attack against Colombus New Mexico. In response to Villas raid on Colombus President Wilson sent 5000 men of the U.S Army under General John Pershing into Mexico to capture Villa, employing air craft and trucks for the 1st time in U.S History. -
Sussex Pledge
After attacking the French ferry, the Sussex without warning ,Germany promised to not attack U.S ships with out warning or reason.They vailated this pledge initiating the first battle of the Atlantic. -
'' He Kept Us Out Of War ''
Presidential election of 1916 where Wilson used the chant "He Kept Us Out Of War'' as a slogan to state the neutrality of the U.S in the war.Unfortunately, do to Germans persistence on using unrestricted submarine warfare, Wilson asked congress to declare war in 1917. -
Zimmermann Note
The Zimmerman note - also known as the Zimmerman Telegram - was a diplomatic proposal from the German Empire to Mexico to declare war against the United States. Germany's main purpose for this Telegram, if it had succeeded, was to slow down the exports of U.S arms. -
Resumption of Unrestricted Submarine Warfare
Germans resumption to unrestricted submarine warfare at sea was a main reason U.S declared and joined war. Germany was eagered to keep to their word of sinking any ship entering the ports of the Allied Nations.On 22 December 1916, Admiral von Holtzendorff composed a memorandum which became the pivotal document for Germany's resumption of unrestricted U-boat warfare in 1917. -
Russian Revolution
Series of revolutions in Russia which dismantled the Tsarist Autocracy and led to the creation of the Russian SFSR. The Russian Revolution weakened the Russians against the Germans during WWI.