What are the four main causes of WWI (M.A.I.N.)?
Militarism, Alliances, Imperialism, Nationalism
What is militarism?
Arms race between industrialized countries increasing tensions.
Why did European countries form alliances before WWI?
To protect borders from rivals — countries signed treaties guaranteeing mutual defense.
What was imperialism’s role in causing WWI?
Competition for colonies in Africa/Asia. Britain threatened by Germany’s rapid economic growth.
Why were the Balkans called the “powder keg of Europe” by 1914?
Extreme ethnic tensions + Russia sponsoring Pan-Slavism among Slavic peoples.
What is Pan-Slavism?
Belief that all Slavic peoples shared a common nationality, backed by Russia.
What was the immediate cause (spark) of WWI?
Assassination of Archduke Franz Ferdinand by the Black Hand (wanted Bosnia united with Serbia).
What was the “blank check”?
Germany’s promise to fully support Austria-Hungary, leading Austria to declare war on Serbia.
What is a war of attrition?
A stalemate where whichever side holds out longer wins — war to the last man.
What is total war?
Channeling a nation’s entire resources into the war effort — government controls economy and culture.
How did governments achieve total war?
Raised taxes, borrowed money, naval blockades, propaganda to control public opinion.
What was trench warfare?
Soldiers fought from long ditches, creating a stalemate on the Western Front.
Name five new technologies used in WWI.
Machine guns, long-range artillery, tanks, poison gas (mustard gas), aircraft, submarines (U-boats).
What was mustard gas?
Chemical weapon causing blisters, blindness, suffocation, burns — first chemical warfare.
What were U-boats and unrestricted submarine warfare?
German submarines sinking ships without warning using stealth.
What was the Battle of Verdun?
Longest WWI battle (300 days), 500,000+ casualties.
What was the Battle of the Somme?
Bloodiest single day — 60,000 British soldiers died in one day.
What happened on the Eastern Front?
Russia suffered heavy losses and left in 1917. Ottomans blocked the Dardanelles and committed the Armenian Genocide.
What role did colonies play in WWI?
Colonial subjects recruited as soldiers, many hoping service would lead to independence.
Why did the US enter WWI? (3 reasons)
1) Unrestricted submarine warfare. 2) Sinking of the Lusitania (1915). 3) Zimmerman Telegram (1917).
What was the 1918 Spanish Flu?
Influenza epidemic killing 50–100 million people worldwide.
How did WWI end?
US troops joined Allied counter-attack. Bulgaria and Ottomans surrendered. Revolution in Austria-Hungary and Germany. Kaiser stepped down. Armistice signed November 11, 1918.
What were Wilson’s 14 Points?
Free trade, no secret treaties, self-determination, reduced arms, League of Nations.
Who were the “Big Four” at the Paris Peace Conference?
Britain, France, Italy, United States. (Russia had left WWI in 1917.)