23 Special Air Service Regiment(R)
You've read the books, seen the films and may even have shaken Ross Kemp's hand.
If you want to find out more about joining, just phone them up and ask.
23 SAS(V) has similar role to 21 SAS(V) except members are mostly Porridge Wogs and Geordies. Many are on "dole patrol" so have more availability for training and deployment than the shandy-sippers in 21 SAS(V)