The International Court of Justice is the primary judicial organ of the UN. Currently, ICJ rulings can be enforced by the UN Security Council, which can enact military measures (like deploying peacekeepers). The UN Security Council has 15 rotating members composed of UN states and 5 permanent members (the P5), which are China, France, Russia, United Kingdom, and United States. Any P5 member can veto a UNSC decision, including the implementation of ICJ rulings.