Causes: Militarism , Alliances , Imperialism, Nationalism, Assassination of Franz Ferdinand, US Involvement People and Attitudes: 1917, Sinking of the Lusitania, Zimmermann Telegram, Neutrality, Woodrow Wilson, Weapons/ Technology: Trench Warfare, Airplane, Artillery, Machine Gun, Poison Gas, Tank, Homefront: Propaganda, Selective Service Act DRAFT, Victory Gardens , Women replacing men's jobs,

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