United Nations Security Council veto power
The United Nations Security Council veto power is the power of each of the five permanent members of the UN Security Council (China, France, Russia, the United Kingdom, and the United States) to veto any decision other than a "procedural" decision. A permanent member's abstention or absence does not count as a veto.
Source: Wikipedia — United Nations Security Council veto power (CC BY-SA 4.0)