A/HRC/42/17 (e) Immediately put an end to all forms of sexual and gender-based violence against women, children and men, including in detention; (f) Cease and prevent the recruitment and use of children in the armed conflict; further ensure the demobilization and effective disarmament of all children who were recruited and/or used for military purposes; and implement effective measures for their rehabilitation, physical and psychological recovery, and reintegration into society; (g) Conduct prompt, transparent, independent, impartial, thorough, credible, effective and gender-sensitive investigations of all violations and crimes in accordance with international standards, and ensure accountability for the perpetrators, and justice for the victims; and take measures to ensure the protection of all victims and witnesses in such processes. 99. The Group of Experts recommends that other States and regional and international organizations: (a) Promote and support all efforts, notably by the Special Envoy of the Secretary-General for Yemen, to reach a cessation of hostilities and achieve a sustainable and inclusive peace and to ensure accountability for serious violations and crimes; (b) Take all reasonable measures to ensure respect for international humanitarian law by all parties to the conflict, taking into account their level of influence; in particular, refrain from providing arms that could be used in the conflict. 100. Furthermore, the Group of Experts recommends that the Human Rights Council: (a) Ensure that the situation of human rights in Yemen remains on its agenda by renewing the mandate of the Group of Experts; request the Group to report periodically to the Council and to collect and preserve evidence of alleged violations; and ensure that the resources provided to the Group allow for the effective delivery of its mandate; (b) Urge the Security Council to emphasize the human rights dimensions of the conflict in Yemen, and the need to ensure that there will be no impunity for the most serious crimes. 18