States bear the primary responsibility to respect and ensure the human rights of all individuals within their territory and subject to their jurisdiction. Parties to armed conflict have the obligation to meet the essential needs for food, water, medical care and shelter of persons living under their control. Affected people have a right to receive assistance, including from impartial humanitarian organizations. This is a core obligation of parties to conflict and a fundamental prerequisite of humanity. Access cannot be arbitrarily denied. All State and non-State parties have the responsibility to ensure humanitarian and medical health-care workers and facilities are protected and that all necessary political, legal, social and safety measures are put in place and strictly adhered to in order to protect them.