A/RES/55/74 necessary rehabilitation and development assistance in conjunction, as appropriate, with the Office of the High Commissioner, relevant mechanisms, including those within the United Nations system, and development agencies; 17. Reiterates the right of all persons to return to their country of origin, emphasizes in this regard the obligation of all States to accept the return of their nationals, calls upon all States to facilitate the return of their nationals who have sought asylum and have been determined not to be in need of international protection, and affirms the need for the return of persons to be undertaken in a humane manner and with full respect for their human rights and dignity, irrespective of the status of the persons concerned; 18. Acknowledges the desirability of comprehensive approaches by the international community, notably at the regional level, to the problems of refugees and displaced persons, and notes in this regard that capacity-building in countries of origin and countries of asylum can play an important role in addressing the root causes of refugee flows, strengthening emergency preparedness and response, promoting and building peace, and developing regional standards for the protection of refugees; 19. Urges States, in cooperation with the Office of the High Commissioner and other relevant organizations, to explore and support fully capacity-building initiatives as part of a comprehensive approach to addressing refugee issues and to take necessary measures to promote sustainable development and to ensure the success of capacity-building activities, and reiterates that such initiatives may include those which strengthen legal and judicial institutions and civil society, those which promote services for refugees, the observance of human rights, the rule of law and accountability and those which enhance the capacity of States to fulfil their responsibilities with respect to persons under the mandate of the Office of the High Commissioner; 20. Reiterates its support for the role of the Office of the High Commissioner in providing humanitarian assistance and protection to internally displaced persons on the basis of criteria enumerated in paragraph 16 of its resolution 53/125 of 9 December 1998, and underlines the continuing relevance of the Guiding Principles on Internal Displacement; 10 21. Calls upon States to adopt an approach that is sensitive to gender-related concerns and to ensure that women whose claims to refugee status are based upon a well-founded fear of persecution for reasons enumerated in the 1951 Convention and the 1967 Protocol, including persecution through sexual violence or other gender-related persecution, are recognized as refugees, and encourages the Office of the High Commissioner to continue and to strengthen its efforts for the protection of refugee women; 22. Urges States and relevant parties to respect and observe principles of international human rights and humanitarian and refugee law that are of particular relevance to safeguarding the rights of the child and adolescent refugees whose situation is particularly vulnerable to abuse, welcomes in this regard the adoption of the Optional Protocols to the Convention on the Rights of the Child on the involvement of children in armed conflict 11 and on the sale of children, child 10 11 4 E/CN.4/1998/53/Add.2, annex. Resolution 54/263, annex I.