An armistice is a formal agreement between warring parties to stop fighting and negotiate peace. In the context of World War I, the armistice marked a crucial turning point, as it ended the hostilities on the Western Front and paved the way for peace talks that ultimately led to the Treaty of Versailles. This cessation of fighting allowed for both sides to regroup and reassess their positions, setting the stage for the political and social changes that would follow the war.