Following liberation in 1944, France returned to a universal military service system. However, conscripts were not required to serve in the Indo-China War of 1947–54, which was fought by French, North African and colonial volunteers plus the Foreign Legion and locally recruited forces. This meant an increased reliance on voluntary enlistment and by 1950 conscripts made up only 29.1% of total French Army effectives. By contrast the Algerian War of 1954–62 involved the extensive use of conscripts, on the rationale that Algeria was legally part of metropolitan France. In 1957, with the Algerian War at its height, 57% of the army consisted of conscripts, mostly from metropolitan France. It was still possible to draw on substantial numbers of Algerian Muslim volunteers and conscripts, although issues of divided loyalties made the North African troops less dependable towards the end of the war. During this period, the majority of French military units were made up of a mix of volunteers and conscripts in varying proportions. Only the Foreign Legion remained an entirely professional force.