The First Battle of the Marne took place from September 6 to September 12, 1914, during World War I. It was a significant conflict between the Allied Powers, primarily France and Britain, and the German Empire. The battle marked a turning point in the war, as the Allies successfully halted the German advance towards Paris, leading to a stalemate on the Western Front. The battle involved around 2 million soldiers and was characterized by intense trench warfare. The Allies employed strategic maneuvers, including the use of taxis to transport troops, which helped them to outflank the Germans. This victory prevented a quick German victory and set the stage for years of prolonged conflict.