Royal Marines Cadets are based in Detachments which sit in Sea Cadet units, and across the UK there are 117.
You can join at 13 and can stay on till you reach 18, at which point you can think about whether you might want to be a volunteer. You can then teach what you have learnt to the youngsters coming up through the ranks.
The head of the RMC is the Staff Royal Marines Officer (SRMO), a serving Colour Sergeant on secondment to Sea Cadets from the Royal Marines.
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