The
All Arms Commando Course (AACC) lasts for 8 weeks and is run by the
Royal Marines at the
Commando Training Centre Royal Marines (CTCRM),
Lympstone. Members from any of the United Kingdom's Regular
Armed Forces (e.g. personnel from units attached to the Marines) and overseas exchange personnel can attend to serve with
3 Commando Brigade (3 Cdo Bde RM). On completion of the course the successful candidate earns the right to wear the
green beret, and to wear the "
Commando Dagger" on their uniform. The Royal Marines expects that nearly half of the volunteers will drop out or be dismissed before completing the AACC.