The manpower of the Austrian Armed Forces () mainly relies on conscription. All males who have reached the age of eighteen and are found fit have to serve a six months compulsory military service, followed by an eight-year reserve obligation. Both males and females at the age of sixteen are eligible for voluntary service. Conscientious objection is legally acceptable and those who claim this right are obliged to serve an institutionalised nine months civilian service instead. Since 1998, women volunteers have been allowed to become professional soldiers.