Commando Badge Cufflinks.
In the United Kingdom all Royal Marines who have passed the Commando Course wear the green beret. Personnel from the Royal Navy, British Army, and Royal Air Force volunteering for service with 3 Commando Brigade undertake the All Arms Commando Course, completion of which allows the individual to wear the headgear. Commando-qualified Royal Marines always wear the green beret, but commando-qualified personnel from other services only wear it, with their own cap badge, when serving with commando units unless otherwise authorised.
The commando badge of a fighting knife on a triangular patch is worn on the sleeve in perpetuity by those who have passed the course.
