Related Rule
Serbia and Montenegro
Practice Relating to Rule 136. Recruitment of Child Soldiers
In 2003, in its initial report to the Human Rights Committee, Serbia and Montenegro stated:
602. The Convention on the Rights of the Child has been incorporated in the Yugoslav legal system in 1990 … Also, the Federal Republic of Yugoslavia ratified the Optional Protocol on the Participation of Children in Armed Conflict in 2002 …
603. In case of war or other armed conflict, criminal legislation prohibits the treatment of the participants in the conflict and of the population of the country that is a party to the conflict in a way ignoring the fundamental human rights and freedoms. It is a matter of criminal-legal protection based on international law, so that most of the criminal-legal norms, in defining criminal offences, refer to international law.
604. Besides, the protection of children from participating in armed conflicts is also ensured by the legislation relating [to] the Yugoslav Army and the performance of military service. This legislation establishes the lower limit for sending persons to do their military service, i.e. 21 years of age. Exceptionally, a conscript may at his own request be sent to serve his military term even before reaching the age of 21, but not before 18 years of age. 
Serbia and Montenegro, Initial report to the Human Rights Committee, UN Doc. CCPR/C/SEMO/2003/1, 24 July 2003, §§ 602–604.