What event in 1917 most benefited the Allies and turned the tide of the war?(1 point) Responses The United States entering on the Allied side and declaring war against Germany. The United States entering on the Allied side and declaring war against Germany. Germany agreed to end unrestricted submarine warfare. Germany agreed to end unrestricted submarine warfare. Russia signed the Treaty of Brest-Litovsk. Russia signed the Treaty of Brest-Litovsk. Woodrow Wilson published his Fourteen Points.
