NATO

The North Atlantic Treaty Organization (NATO) is a military alliance established by the signing of the North Atlantic Treaty on 4 April 1949. The organization established a system of collective defence in which its member states agree to mutual defence in response to an attack by any external party. The headquarters of NATO are in Brussels, Belgium.

Current deployments

Afghanistan

There is a substantial military force in Afghanistan, including U.S. forces, although there are also independent U.S. forces there not under ISAF command.

• International Security Assistance Force (ISAF)

Kosovo

KFOR is the peace operations force in Kosovo, under the authority of United Nations Security Council Resolution 1244.

• Kosovo Force (KFOR)