intolerance, instances of various forms of racism, racial discrimination, xenophobia and related intolerance against refugees, asylum-seekers and internally displaced persons, among others, continue; 54. We underline the urgency of addressing the root causes of displacement and of finding durable solutions for refugees and displaced persons, in particular voluntary return in safety and dignity to the countries of origin, as well as resettlement in third countries and local integration, when and where appropriate and feasible; 55. We affirm our commitment to respect and implement humanitarian obligations relating to the protection of refugees, asylum-seekers, returnees and internally displaced persons, and note in this regard the importance of international solidarity, burden-sharing and international cooperation to share responsibility for the protection of refugees, reaffirming that the 1951 Convention relating to the Status of Refugees and its 1967 Protocol remain the foundation of the international refugee regime and recognizing the importance of their full application by States parties; 56. We recognize the presence in many countries of a Mestizo population of mixed ethnic and racial origins and its valuable contribution to the promotion of tolerance and respect in these societies, and we condemn discrimination against them, especially because such discrimination may be denied owing to its subtle nature; 57. We are conscious of the fact that the history of humanity is replete with major atrocities as a result of gross viola- 27