In 1992, Mongolia declared its territory a nuclear-weapon-free zone, received support from the General Assembly. Since 1998, the resolution has been approved biannually.

The General Assembly called on other UN Member States to continue to cooperate with Mongolia in taking the measures necessary to consolidate and strengthen Mongolia’s independence, sovereignty and territorial integrity, the inviolability of its borders, its independent foreign policy, its economic security and its ecological balance, as well as its nuclear-weapon-free status.

Mongolia’s nuclear-weapon-free status has a great significance for actions of the international organization in disarmament and non-proliferation of nuclear weapons.

In 2017, the 25th Anniversary of Mongolia’s nuclear-weapon-free status was marked and Secretary-General António Guterres sent a congratulatory message in which he noted that Mongolia’s nuclear-weapon-free status is 'unique'. He also highlighted that the UN highly appreciates the achievement of the Mongolian Government and its people towards nuclear-weapon disarmament and the non-proliferation of weapons.