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What are the 4 MAIN causes of WWI? Militarism, Alliance System, Imperialism, Nationalism What was the immediate cause of the war? Assassination of Archduke Franz Ferdinand (heir to A-H throne) Where did the immediate cause take place and who was involved? Sarajevo, Gavrillo Princip (member of Black Hand) What were the 2 alliances at the beginning of the war? Triple Alliance (Austria-Hungary, Germany, Italy) Triple Entente (Britain, France, Russia ) When did the war take place? US involvement? War begins 1914, US attempts neutrality initially
i/world-war-i-history/videos/wwi-firsts
No-Man’s Land- the area between opposing trenches Between 200 to 1000 meters between trenches
Germany and France dug trenches on Western Front. Millions died in “no-man’s-land” between trenches.
German soldiers in a well-constructed trench in France pick lice out of their clothes. By the end of 1914, the Western Front had solidified into two systems of trenches running across France.
German submarines Abbreviation for the German phrase for “undersea boat” (unterseeboot)
A situation where neither side can win a clear victory
By April 1917, the US had $2.6 billion in war bonds ($27 million German bonds) American ships also carried war supplies to Europe
Germany’s policy of sinking any ship, even civilian
May 1915 sinking of the Lusitania off coast of Ireland killed (128 Americans) 1 year later- Sussex sunk Led to Sussex Pledge- Germany promises not to sink merchant vessels without warning and saving human lives.
Wins reelection in “He kept us out of War” “Peace without victory”
1. Sinking of the Lusitania 2. Zimmerman Note- proposed alliance between Mexico and Germany Mexico would get land back from the US
On April 6, 1917 US declares war on Germany The start of the war was July 28, 1914 WWI