This article highlights the pivotal role of the USA in the Meuse-Argonne Offensive and World War I, leading to its emergence as a global leader in military, diplomacy, and post-war cooperation through the League of Nations. The Meuse-Argonne Offensive, also called the Meuse River-Argonne Forest Offensive or the Meuse-Argonne campaign, was a massive part of the last Allied attack in World War I that went all along the Western Front. It happened from September 26, 1918, to November 11, 1918, for a total of 47 days. The Meuse-Argonne Offensive was the largest battle in the history of the United States military, involving 1.2 million American soldiers. It was also the deadliest fight for the United States Army, with over 350,000 people hurt or killed, including 28,000 German soldiers, 26,277 American soldiers, and an unknown number of French soldiers. Many American soldiers were not experienced, and the battle was made harder by the tactics used in the early stages and by a global flu outbreak called the "Spanish flu." Please visit this very link for Historical News based on Geopolitical viewpoints and rest of this article, https://www.timeprinternews.com