S/RES/1261 (1999) Page 3 in armed conflict in violation of international law through political and other efforts, including promotion of the availability of alternatives for children to their participation in armed conflict; 14. Recognizes the deleterious impact of the proliferation of arms, in particular small arms, on the security of civilians, including refugees and other vulnerable populations, particularly children, and, in this regard, recalls resolution 1209 (1998) of 19 November 1998 which, inter alia, stresses the importance of all Member States, and in particular States involved in manufacturing and marketing of weapons, restricting arms transfers which could provoke or prolong armed conflicts or aggravate existing tensions or armed conflicts, and which urges international collaboration in combating illegal arms flows; 15. Urges States and the United Nations system to facilitate the disarmament, demobilization, rehabilitation and reintegration of children used as soldiers in violation of international law, and calls upon, in particular, the Special Representative of the Secretary-General for Children and Armed Conflict, UNICEF, the UNHCR and other relevant agencies of the United Nations system to intensify their efforts in this regard; 16. Undertakes, when taking action aimed at promoting peace and security, to give special attention to the protection, welfare and rights of children, and requests the Secretary-General to include in his reports recommendations in this regard; 17. Reaffirms its readiness when dealing with situations of armed conflict: (a) to continue to support the provision of humanitarian assistance to civilian populations in distress, taking into account the particular needs of children including, inter alia, the provision and rehabilitation of medical and educational services to respond to the needs of children, the rehabilitation of children who have been maimed or psychologically traumatized, and child-focused mine clearance and mine-awareness programmes; (b) to continue to support the protection of displaced children including their resettlement by UNHCR and others as appropriate; and (c) whenever adopting measures under Article 41 of the Charter of the United Nations, to give consideration to their impact on children, in order to consider appropriate humanitarian exemptions; 18. Reaffirms also its readiness to consider appropriate responses whenever buildings or sites which usually have a significant presence of children are specifically targeted in situations of armed conflict, in violation of international law; 19. Requests the Secretary-General to ensure that personnel involved in United Nations peacemaking, peacekeeping and peace-building activities have appropriate training on the protection, rights and welfare of children, and urges States and relevant international and regional organizations to ensure /...