[At the outset of a large movement of refugees, receiving States, bearing in mind their national capacities and international legal obligations, in cooperation, as appropriate, with the Office of the United Nations High Commissioner for Refugees, international organizations and other partners and with the support of other States as requested, in conformity with international obligations, would:] Assess and meet the essential needs of refugees, including by providing access to adequate safe drinking water, sanitation, food, nutrition, shelter, psychosocial support and health care, including sexual and reproductive health, and providing assistance to host countries and communities in this regard, as required;