Chapter 30 The War to End War Buildup to US Entrance Sussex Pledge Germany damaged a merchant ship killing 80 Wilson told Germany if they didn?t give notice, he would break off diplomatic relations Germany agreed to give warning for merchant and passenger ships Zimmermann Note: Germany proposed German-Mexican alliance and encouraged Mexico to attack US March 1917, Germany sinks 4 unarmed merchant ships April 2, 1917 Wilson asks Congress to declare war 14 Points: January 8, 1918 Wilson?s plan for dealing with postwar world Major ideas: Abolish secret treaties Freedom of the seas Remove economic barriers Reduce arms Give up colonies Other major idea: self-determination Countries should govern themselves and decide their own form of government US Entrance into War Reasons