- Allies (Triple Entente)
- Great Britain
- France
- Russia
- Norman Angell (1872–1967)
- British Nobel Peace Prize winner
- Believed war was obsolete in 1910 because international finance would suffer from war
- Central Powers (Triple Alliance)
- Germany
- Austria-Hungary
- Italy
- would later abandon the triple alliance
- dreadnoughts
- Massive battleships, larger than anything before seen
- Franz Ferdinand
- Austro-Hungarian Archduke
- Assassinated and started WWI
- Vladimir Illyich Lenin (1870–1924)
- Russian revolutionary and theorist
- Believed that capitalism would inevitably lead to war
- Gavrilo Princip (Bosnian nationalist)
- poison gas
- Schlieffen plan
- Early German plan
- Trying to stop a two-front war
- Swiftly takeover Paris and knock out France from the war
- Failed
- submarine (U-Boat) warfare
- German's used to break the British naval blockade around the coast
- German's sinking passenger ship Lusitania was one reason the US entered the war
- Western front
- Germany vs France
- Stretched from the English channel to Switzerland