National Security: The United States had concerns about its national security, particularly regarding the unrestricted submarine warfare conducted by Germany. German U-boats were sinking American ships, leading to the loss of American lives and threatening American economic interests. U.S. entry into the war aimed to protect American security and interests by helping the Allied powers defeat Germany.
Economic Interests: The United States had economic ties with the Allied powers, particularly Britain and France. These nations were significant trading partners, and a German victory could have disrupted American trade and economic relations. U.S. intervention in the war sought to safeguard and expand American economic interests.
Ideological Factors: Beyond democracy, Wilson championed other ideals, such as self-determination and the right of nations to choose their own governance. Wilson's vision for a post-war world included promoting these principles and creating a more just international order. U.S. intervention was driven by a desire to shape the outcome of the war and establish a lasting peace based on Wilsonian ideals.
Geopolitical Influence: The United States saw an opportunity to increase its global influence and expand its role on the international stage. By participating in the war and contributing to the victory of the Allied powers, the U.S. aimed to assert itself as a major player in global affairs and have a say in shaping the post-war settlement.
Humanitarian Concerns: The war had led to widespread devastation, loss of life, and human suffering. The United States, motivated by humanitarian concerns, sought to bring an end to the conflict and alleviate the suffering of the affected populations. Wilson's calls for a "war to end all wars" and the establishment of a League of Nations were driven by a desire to prevent future conflicts and promote peace.