The ground force of Italy, the "Regio Esercito" dates back to the unification of Italy in the 1850s and 1860s. It fought in colonial engagements in China during the Boxer Rebellion, against the Ottoman Empire in Libya (1911-1912), on the Alps against the Austro-Hungarian Empire during World War I, in Abyssinia during the Interwar period, and in World War II in Albania, Greece, North Africa and Russia, as well as in the Italian Civil War. During the Cold War the Army prepared itself to defend against a Warsaw Pact invasion from the east. Since the dissolution of the Soviet Union, it has seen extensive peacekeeping service in Lebanon, Afghanistan, and Iraq. On 29 July 2004 it became a professional all-volunteer force when conscription was finally ended.