Chapter VII of the United Nations Charter

Chapter VII of the United Nations Charter sets out the UN Security Council's powers to maintain peace. It allows the Council to "determine the existence of any threat to the peace, breach of the peace, or act of aggression" and to take military and nonmilitary action to "restore international peace and security".

Chapter VII also gives the Military Staff Committee responsibility for strategic coordination of forces placed at the disposal of the UN Security Council. It is made up of the chiefs of staff of the five permanent members of the Council.

The UN Charter's prohibition of member states of the UN attacking other UN member states is central to the purpose for which the UN was founded in the wake of the destruction of World War II: to prevent war. This overriding concern is also reflected in the Nuremberg Trials' concept of a crime against peace "starting or waging a war against the territorial integrity, political independence or sovereignty of a state, or in violation of international treaties or agreements..." (crime against peace), which was held to be the crime that makes all war crimes possible.