The United Nations Security Council is the only UN body that can issue decisions binding on every member state — imposing sanctions, deploying peacekeepers and even authorizing the use of force. Yet its most powerful feature is a negative one: a single “no” from any one of five countries can kill a resolution outright. That is the veto. Understanding how Council votes are cast — and blocked — explains why the world’s most powerful diplomatic body so often ends in deadlock.

The 15 Members and the Rule of Nine

The Council has 15 seats. Five are held permanently by China, France, the Russian Federation (which succeeded the Soviet Union’s seat), the United Kingdom and the United States. The other ten are filled by countries elected by the General Assembly for two-year terms, with five seats changing hands each year, and the Council presidency rotating monthly in English alphabetical order.

Voting is governed by Article 27 of the UN Charter. Every member has one vote. Decisions on procedural matters — setting the agenda, inviting a non-member to speak — pass with any nine affirmative votes. Decisions on all other matters require nine affirmative votes including the concurring votes of the permanent members. In plain terms: on a substantive issue, a “no” from any permanent member is a veto, and the resolution fails no matter how many others support it. An abstention, however, is not a veto — a permanent member can withhold support without blocking adoption, and the resolution still passes if it gets nine “yes” votes.

How a Resolution Gets Drafted

Few resolutions arrive at a vote cold. They are usually drafted by one or more “penholder” countries and then negotiated in closed-door informal consultations, where wording is haggled over line by line. The goal is to secure nine votes while avoiding a veto, which means the draft’s language is constantly adjusted to what the permanent members will tolerate. Only when the sponsors believe they have the numbers — or want to force a public veto — is the text put to a formal vote at a public meeting. Much of the Council’s real diplomacy therefore happens before anyone raises a hand.

Where the Veto Came From

The veto was the price of the UN’s creation. At the Yalta Conference in 1945 and the San Francisco conference that wrote the Charter, the great powers insisted the new organization must never be able to take enforcement action against the vital interests of a major power — a safeguard meant to stop the UN from blundering into a third world war. The word “veto” never appears in the Charter itself; the power flows from the requirement of “concurring votes of the permanent members.”

It was used almost immediately. In February 1946, less than a month after the Council first met, the Soviet Union cast the first veto in UN history, blocking a proposal concerning the withdrawal of British and French troops from Syria and Lebanon — establishing early that the veto could be used on matters far from a great power’s own borders.

The Veto by the Numbers

As of September 2026, the Soviet Union and Russia have together cast 131 vetoes, the United States 89, the United Kingdom 29, China 21 and France 16, according to the UN Dag Hammarskjöld Library’s tally. Roughly two-thirds of the Soviet and Russian total were cast in the Council’s first decade, much of it to block Western-backed applications for UN membership.

The modern pattern maps onto geopolitics. The United States has used 51 of its vetoes on resolutions concerning Israel and the Palestinians. Russia and China have repeatedly vetoed action on Syria since the civil war began in 2011, and Russia has vetoed resolutions on Ukraine. France and the United Kingdom, by contrast, have not cast a veto since 1989.

Deadlock — and the Workarounds

When a permanent member’s own interests are at stake, the Council can freeze completely. A few escape hatches exist. In 1950, with the Soviet Union boycotting the Council, the remaining members authorized action in Korea — establishing the precedent that an absence, like an abstention, cannot block a resolution. That same year the General Assembly adopted the “Uniting for Peace” resolution (377), allowing it to hold emergency special sessions when the Council is deadlocked; Assembly resolutions carry political weight but are not binding.

There is also the lesser-known “double veto”: the question of whether an issue is procedural or substantive is itself treated as substantive, so a permanent member can veto the classification itself. And in April 2022, the General Assembly adopted the “veto initiative” (Resolution 76/262), which requires a debate within ten working days whenever a veto is cast — forcing the vetoing power to publicly justify its “no” before the full membership.

Why the System Survives

Reform proposals are decades old. The G4 — Brazil, Germany, India and Japan — campaigns for permanent seats, and many states want the veto restricted, especially in cases of mass atrocities. But amending the Charter requires ratification by all five permanent members, each of which can veto the change. So the veto protects itself.

Defenders argue that is the point: the veto keeps the great powers inside the system. A UN empowered to authorize force against a nuclear-armed state would either be ignored or become a trigger for the very war it exists to prevent. Critics counter that it paralyzes the Council precisely when it is needed most — over Syria, Ukraine and Gaza — reducing it to a bystander in the crises that define its mandate. Both sides agree on one thing: for the foreseeable future, the veto will decide what the Security Council can, and cannot, do.

FAQs

Can the General Assembly overrule a veto?
No. The Assembly can debate a veto under the 2022 veto initiative and can pass its own resolutions, but these are generally recommendations, not binding decisions.

Does an abstention count as a veto?
No. If a permanent member abstains, the resolution passes as long as it gets nine affirmative votes. All five permanent members have used abstention to let resolutions through that they did not want to support openly.

Has every permanent member used the veto?
Yes. All five have exercised it at least once, though France and the United Kingdom have not done so since 1989.

What was the longest period without a veto?
From 31 May 1990 to 11 May 1993 — the longest stretch in UN history without a single veto, a brief post-Cold War window of Council harmony.

Can the veto itself ever be removed?
Only by amending the UN Charter, which requires the agreement of all five permanent members — each of which can veto the amendment. Reformers call this the veto’s ultimate deadlock.

Compiled by the Khabar 24h Editorial Desk from publicly available sources.