United Kingdom of Great Britain and Northern Ireland
SCHEDULES
SCHEDULE 8 Genocide, crimes against humanity and war crimes: articles 6 to 9
Article 8 War crimes
2 For the purpose of this Statute, “war crimes” means:
(b) Other serious violations of the laws and customs applicable in international armed conflict, within the established framework of international law, namely, any of the following acts:
(xxvi) Conscripting or enlisting children under the age of fifteen years into the national armed forces or using them to participate actively in hostilities.
Conscripting children under 15 into the national armed forces - IAC
Enlisting children under 15 into the national armed forces - IAC
Using children under 15 to participate actively in hostilities - IAC
EDIT.