相关规则
Austria
Practice Relating to Rule 137. Participation of Child Soldiers in Hostilities
Upon ratification of the 1989 Convention on the Rights of the Child, Austria stated: “To determine an age limit of 15 years for taking part in hostilities … is incompatible with … the best interests of the child.” 
Austria, Reservations and declarations made upon ratification of the Convention on the Rights of the Child, 6 August 1992, reprinted in UN Doc. CRC/C/2/Rev.4, 28 July 1995, p. 12.