Final answer:
During the outbreak of World War I, the United States adopted a policy of isolationism, aiming to avoid involvement in European military conflicts under President Woodrow Wilson's leadership.
Step-by-step explanation:
United States Policy during the Outbreak of World War I
When World War I first broke out in Europe, the United States government, under President Woodrow Wilson, initially adopted a policy of isolationism. This approach aimed to keep the United States out of international military conflicts, focusing instead on internal affairs. Despite the escalating conflict in Europe and strategic concerns, including the sinking of U.S. ships and the Zimmerman Telegram, the American public and leadership were largely reluctant to engage in the war. It was only later that the United States would enter World War I in 1917, after much debate and change in the global and domestic situation. Prior to this, the legacy of isolationism was strong, influenced by a desire to avoid the pitfalls of European power struggles and maintain neutrality.