Related Rule
Russian Federation
Practice Relating to Rule 136. Recruitment of Child Soldiers
The Russian Federation’s Regulations on the Application of IHL (2001) states with regard to internal armed conflict: “Children who have not attained the age of fifteen years shall neither be recruited in the armed forces or groups nor allowed to take part in hostilities.” 
Russian Federation, Regulations on the Application of International Humanitarian Law by the Armed Forces of the Russian Federation, Ministry of Defence of the Russian Federation, Moscow, 8 August 2001, § 81.
The Russian Federation’s Law on the Ratification of the Optional Protocol to the Convention on the Rights of the Child on the Involvement of Children in Armed Conflict (2008) states:
The Russian Federation, pursuant to article 3, paragraph 2, of the Optional Protocol, declares that, in accordance with the legislation of the Russian Federation, citizens under the age of 18 may not be recruited for military service in the armed forces of the Russian Federation and a military service contract may not be concluded with them. 
Russian Federation, Federal Law on the Ratification of the Optional Protocol to the Convention on the Rights of the Child on the Involvement of Children in Armed Conflict, 2008, § 2.
In 2010, in its initial report to the Committee on the Rights of the Child under the 2000 Optional Protocol on the Involvement of Children in Armed Conflict, the Russian Federation stated:
1. … In June 2008, the Russian Federation ratified the Optional Protocol (Federal Act No. 101-FZ of 26 June 2008 ratifying the Optional Protocol to the Convention on the Rights of the Child on the involvement of children in armed conflict). On 24 September 2008, the instrument of ratification was deposited with the Secretary-General. Pursuant to article 10 of the Optional Protocol, it entered into force for the Russian Federation one month later.
4. … The Russian Federation ratified the Optional Protocol with the following declaration:
The Russian Federation, in accordance with article 3, paragraph 2, of the Optional Protocol, hereby declares that, under the law of the Russian Federation, citizens who have not attained the age of 18 years may not be conscripted for military service in the armed forces of the Russian Federation. They may not enter into a contract for the performance of military service. 
Russian Federation, Initial report to the Committee on the Rights of the Child under the Optional Protocol on the Involvement of Children in Armed Conflict, 4 September 2012, UN Doc. CRC/C/OPAC/RUS/1, submitted 20 October 2010, §§ 1 and 4.