Well, actually nothing. TheGermans are so to say illusionists that managed to florish in a niche slightly aside the real action being both protected and hidden from the big players. This being said, do they have a mean character and understand for well that they cannot attack a stronger other directly, but they will abuse every form of mercy and are playing that card when ever possible.
They also will say everything needed to get out of a bad situation, but never stick to their word and only dare to go against someone that is weaker wich is most of the time their own.
The most hardcore were all only executers hired by the CIA for war crimes in the 3rd World against unarmed civilians.
There is a chance that the more capable organiced troops are recrutied out of the French Forigne Legion through moules in the Defence Ministry or by recruiters frequencing Legionairs pubs looking for clandestine mercenaries, which is a rare but lucrative breed as the ex-Legionair comanding the attack against Irish Forces in Africa.
Terrorists are recruited among failing small time criminals by psycholgic fishing through guirillia media campaignes such as Deso Dogg.
The Deutsch Herren Orden has the longest experianace in Europe finding such creatures among men triggering the Crusades, thousand years of devision between Moslems and Christians with the Holocaust as the very low point of German rule.
PS: As much as these cowards like attacking as in the Siege of Jadotville, men like us love fighting back! There is nothing batter than a good war, except the love of a women, BKA.
