The Emergency Special Session (ESS) of the United Nations General Assembly is a procedural device created by General Assembly Resolution 377(V) of 3 November 1950, universally known as the Uniting for Peace resolution. Adopted at United States initiative during the Korean War to circumvent Soviet vetoes in the Security Council, the resolution declared that when the Council, "because of lack of unanimity of the permanent members, fails to exercise its primary responsibility for the maintenance of international peace and security," the General Assembly "shall consider the matter immediately." The legal foundation rests on Articles 10, 11, and 14 of the UN Charter, which grant the Assembly broad competence to discuss and recommend on matters of international peace, subject to the Article 12(1) limitation that the Assembly not make recommendations on a dispute while the Council is actively exercising its Charter functions. The procedural architecture is codified in Rules 8(b) and 9(b) of the Rules of Procedure of the General Assembly.
Convening an ESS requires either a vote of any nine members of the Security Council (a procedural vote not subject to the veto, per the Council's Rule 30) or a request from a majority of UN Member States transmitted to the Secretary-General. Once triggered, the session must be convened within 24 hours of the request. The Secretary-General notifies all Member States immediately, and the Assembly meets in the General Assembly Hall at UN Headquarters in New York. The agenda is restricted to the single item that prompted the convening; no other business is conducted. Voting follows the standard rule of Article 18(2): decisions on important questions, including recommendations regarding international peace and security, require a two-thirds majority of members present and voting.
A distinctive feature of the ESS is that, once convened, it may be adjourned and resumed repeatedly rather than terminated. The Tenth Emergency Special Session on illegal Israeli actions in occupied East Jerusalem and the rest of the Occupied Palestinian Territory, first convened on 24 April 1997, has been resumed dozens of times across more than two decades, making it a quasi-permanent procedural vehicle. Resumption requires only a request by a Member State to the President of the Assembly, and meetings can be reconvened within days. Resolutions adopted under Uniting for Peace are formally recommendatory under Article 11, not binding under Article 25, but they carry significant political weight and have served as authorization for peacekeeping operations such as UNEF I in 1956.
Eleven ESSs have been convened since 1956. The First ESS addressed the Suez Crisis in November 1956 after British and French vetoes; it established the United Nations Emergency Force. The Second concerned Hungary later that month following Soviet intervention. Subsequent sessions addressed Lebanon and Jordan (1958), the Congo (1960), the Middle East following the Six-Day War (1967), Afghanistan (1980), Palestine (1980, 1982), Namibia (1981), and the Occupied Arab Territories (1982). The Eleventh Emergency Special Session, on the aggression against Ukraine, was convened on 28 February 2022 following Security Council Resolution 2623, which referred the matter to the Assembly after Russia vetoed a draft resolution; on 2 March 2022, the Assembly adopted Resolution ES-11/1 deploring Russian aggression by 141 votes to 5, with 35 abstentions.
The ESS must be distinguished from a Special Session convened under Rule 8(a), which addresses non-emergency matters such as disarmament (SSOD I in 1978) or HIV/AIDS, and which is convened on 15 days' notice rather than 24 hours. It is also distinct from an Arria-formula meeting, an informal Security Council consultation, and from a regular Assembly session's plenary debate on a peace and security item. Crucially, the ESS is not an appellate forum reviewing Council decisions; it is a parallel competence activated only by Council paralysis. The Article 12(1) bar on simultaneous Assembly recommendation has been interpreted narrowly since the International Court of Justice's 2004 Advisory Opinion on the Wall, which confirmed that the Assembly's practice of acting under Uniting for Peace when the Council is "blocked" is consistent with the Charter.
Controversies surround the mechanism's legal status. The Soviet Union, France, and others originally challenged Uniting for Peace as an ultra vires expansion of Assembly competence, arguing it usurped the Council's Chapter VII monopoly on enforcement. The ICJ's 1962 Certain Expenses Advisory Opinion largely vindicated the mechanism by holding that Assembly-authorized peacekeeping expenses were legitimate Charter expenses. More recent debate concerns the indefinite resumption of ESS-10 and whether the device has lost emergency character through routinization. The 2022 invocation against Russia revived scholarly interest, particularly regarding whether ESS resolutions can lawfully recommend countermeasures or sanctions absent Council action.
For the working practitioner, the ESS is the principal tool for generating multilateral political pressure when a P5 member blocks Council action. Desk officers tracking crises involving permanent-member vetoes — Syria, Ukraine, Gaza, Myanmar — should monitor ESS thresholds and resumption patterns, as ESS resolutions frequently set the rhetorical and legal baseline for subsequent General Assembly, Human Rights Council, and ICJ proceedings, including requests for advisory opinions under Article 96 of the Charter.
Example
On 2 March 2022, the Eleventh Emergency Special Session of the UN General Assembly adopted Resolution ES-11/1 deploring Russia's aggression against Ukraine by 141 votes to 5, with 35 abstentions.