while the US remained neutral in the beginning, they provided both sides with military equipment and materials. after Germany began their submarine attacks on British and American ships, the US was forced to join the war on the ally side. while there was no fighting on American territory, America sent troops to Europe to help. After the war president Woodrow Wilson drafted the treaty to end the war and restore peace and this treaty was accepted by the european powers, but the Republican representatives in the US congress rejected the treaty.