The major global conflict that took place from 1914 to 1918 was World War I, also known as the Great War. This conflict involved many of the world's great powers, divided into two main alliances: the Allies and the Central Powers. It was characterized by trench warfare, significant technological advancements in weaponry, and enormous loss of life. The war concluded with the signing of several treaties, most notably the Treaty of Versailles in 1919, which imposed heavy reparations on Germany. The aftermath of the war drastically altered global politics, leading to the rise of totalitarian regimes and setting the stage for World War II.