CRC/C/VNM/CO/3-4 Follow-up to the recommendations under the Optional Protocol on the involvement of children in armed conflict (2006) 76. The Committee remains concerned at the maintenance of the declaration, made by the State party upon its ratification of the Optional Protocol on the involvement of children in armed conflict, that “those who are under the age of 18 shall not be directly involved in military battles unless there is an urgent need for safeguarding national independence, sovereignty, unity and territorial integrity”. It further expresses concern that the State party has not yet ratified the Rome Statute of the International Criminal Court. 77. The Committee recommends that the State party withdraw the declaration and reminds the State party of article 1 of the Optional Protocol on the involvement of children in armed conflict, which states that persons under the age of 18 years should not “take a direct part in hostilities”. The Committee also recommends that the State party consider ratifying the Rome Statute. The Committee requests the State party to include information on the implementation and follow-up to the recommendations under the Optional Protocol (CRC/C/OPAC/VNM/CO/1) in its next periodic report to the Committee. Follow-up to the recommendations under the Optional Protocol on the sale of children, child prostitution and child pornography (2006) 78. The Committee is concerned at the absence of information about the follow-up to the recommendations made by the Committee (CRC/C/OPSC/VNM/CO/1). 79. The Committee recommends that the State party include follow-up and information about the implementation of the Optional Protocol on the sale of children, child prostitution and child pornography in its next periodic report to the Committee. The Committee further recommends that the State party ensure compliance with its previous recommendations under Optional Protocol (CRC/C/OPSC/VNM/CO/1), in particular with regard to ensuring that the criminal law adequately covers the crimes under the Optional Protocol, extraterritorial jurisdiction and extradition. I. Ratification of international human rights instruments 80. The Committee recommends that the State party ratify the core United Nations human rights treaties and the Optional Protocols thereto to which it is not yet a party, in particular, the Optional Protocol to the Convention on the Rights of the Child on a communications procedure, the International Convention for the Protection of All Persons from Enforced Disappearance, the Convention on the Rights of Persons with Disabilities, the International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families, the Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment, the 1951 Convention relating to the Status of Refugees and its 1967 Protocol, the 1954 Convention relating to the Status of Stateless Persons and the 1961 Convention on the Reduction of Statelessness. In addition, the State party is recommended to ratify ILO Convention No. 189 (2011) concerning Decent Work for Domestic Workers. J. Cooperation with regional and international bodies 81. The Committee recommends that the State party cooperate with the Association of Southeast Asian Nations (ASEAN) Intergovernmental Commission on Human Rights and the ASEAN Commission on Women and Children towards the 21