The US Navy is closing the Joint Maritime Facility (JMF), based at RAF St Mawgan and relocating to Virginia in the United States.

The centre is staffed by 110 US personnel, 70 British servicemen and women and nearly 40 civilians.

The primary role of the Joint Maritime Facility is to provide a direct link between United Kingdom and United States maritime forces and their Headquarters in the United Kingdom and overseas. The command supports ASW Command and Tactical Forces by detecting, tracking, and timely reporting of information concerning submarines, oceanographic, and geologic information. Although JMF is the newest facility to be added to the legacy of IUSS, the professionalism and dedication of all personnel onboard has quickly established it as amongst the best and most capable ASW sites in the world.