Bomber Wing. Normally a specialised independent unit. Abbreviated KGr 100 (pathfinders) KGr 606 and KGr 806 (ex-naval units).

Bomber Group

German combat group of variable size

A term loosely assigned to improvised combat units of various sizes, named usually after their commanders

In military history and military slang, the German term Kampfgruppe (pl. Kampfgruppen; abbrev. KG) can refer to a flexible combat formation of any kind, but most usually to that employed by the German army and its allies during World War II and, to a lesser extent, in World War I.

Battle group.