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Germans stop warfare
Germans decided to stop unrestricted warfare and America decided not to go to war -
Gulflight
American tanker Gulflight was sunken by Germans -
Lusitania
British passengers ship with Americans sunk off the coast of Ireland by German U-Boats -
National Defense Act
Expanded army during peace and wartime -
Unrestricted warfare
Germany announced resumption of unrestricted submarine warfare -
Laconia
British ship Laconia was sunk and killed Americans -
Sinking accidents
35 Americans killed in 3 ships sinking accidents caused by Germans -
Unrestricted warfare
The Germans introduced submarine warfare which was an issue with Woodrow Wilson -
Declared War
United States declared War