A/HRC/28/54 manner and to dedicate at least one full-day meeting annually to discuss different themes on children’s rights. 12. The Office of the Special Representative continued to work in close collaboration with the Office of the United Nations High Commissioner for Human Rights (OHCHR) with a view to mainstreaming children and armed conflict in the work of the treaty bodies, special procedures and other human rights mechanisms. In the same vein, recommendations relating to children and armed conflict formulated by United Nations human rights mechanisms were important advocacy tools in the work of the Special Representative. On regular occasions in 2014, the Special Representative met with the Chair and members of the Committee on the Rights of the Child to improve the exchange of information and encourage joint advocacy with respect to children affected by armed conflict. The Office of the Special Representative also provided information on the rights of children in specific conflict-affected country situations, ahead of universal period reviews. The Special Representative encourages the Committee to continue to integrate the monitoring of grave violations and to mainstream accountability in its consideration of States parties’ reports. During the reporting period the Special Representative also met with the Special Rapporteur on the sale of children, child prostitution and child pornography and the United Nations Special Envoy for Global Education. Moreover, the Special Representative engaged with the United Nations commissions of inquiry for the Central African Republic and the Syrian Arab Republic to share information pertaining to grave violations against children and to emphasize the importance of strengthening investigations into grave violations of children’s rights. 13. The Special Representative and her Office also strengthened their relationship with a number of United Nations coordination mechanisms on human rights. The Office is a member of the Rule of Law Coordination and Resource Group and works to integrate child protection concerns by highlighting the need for accountability. To that end, the Special Representative attended the Rule of Law Coordination and Resource Group Principals Retreat in Long Island, New York, in May 2014. The Office of the Special Representative is also a member of the Human Rights Up Front initiative and participated in the implementation of the initiative’s workplan through the subworking groups, on topics such as information management and training. The Office periodically contributed to a number of regional quarterly reviews and the Special Representative participated in meetings of the Senior Advisory Group on situations included in the children and armed conflict agenda. Lastly, as a member of the review group on the United Nations Human Rights Due Diligence Policy, the Special Representative emphasized the links with the children and armed conflict mandate, including where elements of action plans can inform risk assessments. IV. Ending the recruitment and use of children in armed conflict A. “Children, Not Soldiers” campaign 14. In March 2014, the Special Representative, together with UNICEF, launched the “Children, Not Soldiers” campaign to end the recruitment and use of children by government security forces by the end of 2016. The campaign, endorsed by the Security Council in resolution 2143 and welcomed by the General Assembly, aims to mobilize political support, provide technical assistance and assist listed governments who are committed to implementing an action plan and taking the necessary measures to ensure that their security forces do not recruit or use children. 5