FHQu - Führerhauptquartier - GKH - the main Führer's headquarter

FBB - Führer- Begleit- Bataillon - Führer's Armored Battalion

OKH - Oberkommando des Heeres - high command of land troops

OKL - Oberkommando der Luftwaffe - high command of air troops

OKM - Oberkommando der Kriegsmarine - naval high command

OT – Organisation Todt – this organization was building airports, motorways, railways, and military objects using prisoners of war.

RSD - Reichssicherheitsdienst - security service of Reich

WFSt - Wehrmachtführungsstab - Wermacht's high command