Explain the role of the United States in World War I.

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Explain the role of the United States in World War I.

The United States played a significant role in World War I. Initially, the U.S. adopted a policy of neutrality, but as the war progressed, several factors led to its involvement. The sinking of the British passenger ship Lusitania by a German submarine in 1915, which resulted in the death of American citizens, and the interception of the Zimmerman Telegram in 1917, where Germany proposed an alliance with Mexico against the U.S., were major catalysts for the U.S. entry into the war.

In April 1917, the U.S. declared war on Germany and joined the Allied Powers. The American Expeditionary Forces (AEF), led by General John J. Pershing, were sent to Europe to fight alongside the Allies. The U.S. provided crucial military and financial support to the Allies, helping to tip the balance in their favor.

The U.S. involvement in World War I had a significant impact on the outcome of the war. The arrival of fresh American troops boosted the morale of the Allies and provided them with much-needed reinforcements. The U.S. also played a crucial role in the final offensives of the war, such as the Meuse-Argonne Offensive, which helped break the stalemate on the Western Front and ultimately led to Germany's surrender.

Furthermore, the U.S. played a key role in shaping the post-war world. President Woodrow Wilson's Fourteen Points, which outlined his vision for a just and lasting peace, influenced the Treaty of Versailles and the establishment of the League of Nations. Although the U.S. Senate did not ratify the Treaty of Versailles or join the League of Nations, the U.S. emerged as a global power and its involvement in World War I marked a turning point in its foreign policy.