There also existed No. 3 Troop 10th Interallied Commando, also known as the “X” troop, which consisted mainly of refugees from Axis countries (mainly Germany and Austria, most of the members were Jewish).
They were trained in the usual Special Forces techniques, but also received all new intelligence information about the German forces.
There exists an excellent autobiographic account by one of the members, Peter Masters, originally Peter Aranyi from Vienna, Austria, “Striking Back”.
He describes how as a teenager after the Anschluss he got tormented by the Hitler Youth, got temporarely arrsted with his father, but after release, with the help of a relative, managed to escape to Britain just before WW2 started. There he earned his living doing odd jobs until he was interned as an enemy alien in 1940. From internemt camp he volunteered for the Royal Pinoneer Corps and from there was recruited into No3 Troop 10th Interallied Commando. As all Axis citizens fighting in the British Forces he had to write a fake biography, giving himself a British identity (English name, religion usually C0E). This was done out of two reasons: First to protect the soldier in case he got captured by German troops, so that he would be treated as an ordinary POW and not shot out of hand as a traitor, and secondly to prevent the German military form knowing that there existed a special forces unit consisting of native German speakers. He reentered the European Continent on the Eastern flank of Operation Overlord and fought all the way back into Germany. During his time in the British Army he reached the rank of Seargeant.
Members of his unit were usually divided into teams of four and attached to battalion staffs to do special reconnaisance and interrogation of prisoners.
Others served e.g. in the Glider Pilot Regiment (like Sergeant Louis Hagen from Potsdam, aka Louis Haig, who fought in Arnhem. He wrote a book called “Arnhem Lift”).
Most of the survivors of these units later accepted British citizenship and continued to live in Britain after the war.
Jan