Uniting for Peace, formally General Assembly Resolution 377A (V), was adopted on 3 November 1950 at the initiative of United States Secretary of State Dean Acheson during the Korean War. The resolution responded to the Soviet Union's return to the Security Council after its empty-chair boycott, which had allowed the Council to authorise the UN Command in Korea in June 1950. Anticipating that Moscow's veto would henceforth paralyse the Council, the Western powers sought a procedural route to preserve collective security through the General Assembly. The resolution rests on a contested reading of UN Charter Articles 10, 11, and 14, which empower the Assembly to discuss and make recommendations on matters of international peace and security, read against Article 12(1), which bars Assembly recommendations on disputes while the Council is "exercising" its Charter functions. The International Court of Justice, in its 1962 Certain Expenses advisory opinion and again in the 2004 Wall advisory opinion, effectively endorsed the resolution's legality by treating Article 12 as a bar only to simultaneous, active Council seisin.
The operative mechanism is set out in paragraph 1 of Resolution 377A. If the Security Council, "because of lack of unanimity of the permanent members," fails to exercise its primary responsibility for the maintenance of international peace and security in any case where there appears to be a threat to the peace, breach of the peace, or act of aggression, the General Assembly shall consider the matter immediately with a view to making appropriate recommendations to Members for collective measures, including, in the case of a breach of the peace or act of aggression, the use of armed force. Convocation occurs through an emergency special session (ESS), which can be called either by a procedural vote of any nine members of the Security Council — a vote not subject to the veto under Article 27(2) of the Charter — or by a majority of UN Member States communicating their request to the Secretary-General. The Assembly must convene within twenty-four hours of the request.
Once convened, an emergency special session proceeds under modified rules: the Assembly sits in continuous session until the agenda item is disposed of, recommendations require a two-thirds majority as "important questions" under Article 18(2), and the session may be adjourned and later resumed without a fresh convocation vote. Resolution 377A also created — in paragraphs B through E — a Peace Observation Commission and a standing offer by Member States to designate national contingents for UN service, though these mechanisms fell into desuetude. The substantive output of an ESS is recommendatory, not binding under Article 25, but in practice such recommendations have authorised peacekeeping deployments, sanctions calls, and findings of illegality that carry significant political and legal weight.
Eleven emergency special sessions have been convened since 1956. The first, on the Suez Crisis, produced the deployment of the United Nations Emergency Force (UNEF I) in November 1956 after British and French vetoes. The second addressed the Soviet invasion of Hungary that same month; the fifth, in June 1967, followed the Six-Day War. The tenth ESS, on Israeli actions in occupied East Jerusalem and the Occupied Palestinian Territory, has been repeatedly resumed since 1997 and produced the 2003 request for the ICJ advisory opinion on the West Bank barrier. The eleventh ESS, convened on 27 February 2022 after Russia vetoed Security Council action on Ukraine, adopted Resolution ES-11/1 on 2 March 2022 by 141 votes demanding Russian withdrawal — the first ESS triggered by a P5 veto on a P5 member's own conduct since the Cold War.
Uniting for Peace must be distinguished from the Veto Initiative adopted by the General Assembly in Resolution 76/262 of 26 April 2022, which mandates an automatic Assembly debate within ten working days whenever a veto is cast in the Security Council. The Veto Initiative is a transparency and accountability mechanism; it does not transfer recommendatory authority over collective measures. Nor should Uniting for Peace be confused with ordinary Assembly debate under Article 11, which proceeds during regular sessions without the procedural urgency or continuous-session character of an ESS. Unlike Chapter VII Council decisions, Assembly recommendations cannot impose binding sanctions or authorise enforcement action under international law, though they can legitimise coalition or regional action.
The resolution remains contested. The Soviet Union and later the Russian Federation have argued that 377A is ultra vires the Charter, encroaching on the Council's exclusive Article 24 mandate. The People's Republic of China has historically aligned with this view. Some scholars question whether recommendations to use force can lawfully circumvent the Article 2(4) prohibition without Council authorisation. The 2022 invocation against Russia revived these debates: Moscow argued the procedure was being weaponised, while supporters noted the symmetry — the same mechanism designed by Washington in 1950 to outflank Soviet vetoes was now being used to isolate Russia diplomatically.
For the working practitioner, Uniting for Peace is the principal procedural lever for restoring multilateral momentum when the Security Council deadlocks. Desk officers drafting ESS requests must marshal either nine Council votes or a simple majority of the 193 Member States, coordinate co-sponsors, anticipate hostile procedural motions, and calibrate recommendatory language that maximises political effect without overreaching the Assembly's competence. Familiarity with the precedents — particularly the tenth and eleventh sessions — is now indispensable for any mission engaged on Ukraine, Palestine, or future crises in which a P5 veto forecloses Council action.
Example
On 27 February 2022, the UN Security Council voted to convene the Eleventh Emergency Special Session under Resolution 377A after Russia vetoed a draft condemning its invasion of Ukraine.