This article will review the actions of American forces during the Meuse-Argonne Offensive. When American forces arrived in France in June 1917, an inexperienced fighting force quickly transformed itself in just 15 months and abruptly ended the war after a 47-day campaign. They were led by General John J. Pershing, fighting an experienced German enemy who had been fighting for more than three years before their arrival. The U.S. forces involved consisted of the offensive-focused U.S. 1st Army and part of the entire Allied Expeditionary Force. French forces took part in the offensive in the west, British forces fought in the east. The offensive owes its name to the very thick Argonne forest which was to the west and the Meuse to 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 American objectives and the end of operations in the Meuse-Argonne Offensive, the Treaty of Versailles was signed, thus ending World War I. Keywords: American forces, The Meuse-Argonne Offensive and the end of World War I. Archduke Francis Ferdinand was assassinated by Gavrilo Princip of Bosnia-Serbia on June 28, 1914 ("Franz Ferdinand", nd, para. 4). This plunged Europe into World War I and ultimately pitted two united 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 Aftermath,” 2007, paragraph 1). Before the arrival of American forces, the Allied powers were desperately seeking middle of paper ......slowing down the French and British. American forces faced an incredibly well-defended German enemy. Compared to their allies, they were inexperienced in combat. Despite all obstacles, American forces advanced. They brought a new 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 Military in the Global Age, 1917-2003. (Vol. II). Washington, DC: Center for Military History. Retrieved from http://www.history.army.milFranz Ferdinand. (nd). Retrieved from http://net.lib.byu.edu/estu/wwi/bio/f/franzfrd.html World War I: Beginnings and Aftermath. (December 16, 2007). Retrieved from https://www.mtholyoke.edu/~raina20s/ww1/play.html