The Nachtigall Battalion, also known as the Ukrainian Nightingale Battalion Group, or officially as Special Group Nachtigall
was a subunit under command of the German Abwehr special-operations unit Lehrregiment "Brandenburg" z.b.V. 800 in 1941. Wikipedia
Founded: 1941
Ceased operations: 1941
Notable commanders: Roman Shukhevych, Theodor Oberländer
Size: 360 to 400