This article will examine the actions of American forces during the Meuse-Argonne Offensive. Upon the arrival of American forces in France in June 1917, an inexperienced fighting force quickly transformed in just 15 months and abruptly ended the war after a 47-day campaign. They were led by General John J. Pershing, fighting against an experienced German enemy who had been in battle for over three years prior to their arrival. The American forces involved consisted of the US 1st Army, which was concentrated on the offensive, and part of the overall Allied Expeditionary Force. French forces took part in the offensive in the west, British forces fought in the east. The offensive took its name from the dense Argonne Forest in the west and the Meuse River in the east. Without the arrival of American forces in Europe and their participation in the offensive, World War I would have continued with more lives lost and countries destroyed. Seven days after the capture of the American objectives and the cessation of operations of the Meuse-Argonne offensive, the Treaty of Versailles was signed, thus ending the First World War. Keywords: American forces, Meuse-Argonne offensive and end of the First War worldArchduke Franz Ferdinand was assassinated by Gavrilo Princip of Bosnia-Serbia on June 28, 1914 (“Franz Ferdinand,” n.d., par. 4). This plunged Europe into World War I and ultimately pitted two unified forces against each other. The Allied Powers consisted of Great Britain, France, Russia and the United States of America. The Central Powers consisted of Germany, the Austro-Hungarian Empire, and the Ottoman Empire (“World War I: Beginnings and Consequences,” 2007, para. 1). Before the arrival of American forces, the Allied Powers found themselves desperately n...... middle of paper......ral of the French and the English. American forces faced an incredibly well-defended German enemy. Compared to their allies, they were inexperienced in combat. With the odds against them, the American forces pressed forward. They brought a renewed spirit to the fight. They exceeded all expectations and their involvement directly ended the Great War. It was a victory for the Allied powers, but only because American forces led the way. Works Cited Stewart, R. W. (2005). American Military History: The United States Army in a Global Era, 1917-2003. (Vol. II). Washington, DC: Military History Center. Retrieved from http://www.history.army.milFranz Ferdinand. (n.d.). Retrieved from http://net.lib.byu.edu/estu/wwi/bio/f/franzfrd.html World War I: Beginnings and Aftermath. (2007, December 16). Retrieved from https://www.mtholyoke.edu/~raina20s/ww1/play.html