The United Kingdom contributes to all four of the NATO operations and missions:

The International Security Assistance Force (ISAF) in Afghanistan; Kosovo Force (KFOR); the NATO Training Assistance Implementation Mission in Iraq (NTM-I) and Operation Active Endeavour (OAE) in the Eastern Mediterranean.

In addition, it provided support to the African Union's peacekeeping mission to Sudan from 2005 until it's termination in at the end of 2007, providing airlift and training/mentoring.  It is examining with the AU possibilities for further capacity building support.