Original sentence: 1 May 1944  Oberst (Colonel) (posthumous promotion after death)Die Wehrmachtberichte 1939-1945 Band 3, p.Die Wehrmachtberichte 1939-1945 Band 3, p.He joined Jagdgeschwader 2 (JG 2) as a Leutenant upon completion of his training
Edited sentence: 1 May 1944  Oberst (Colonel) (posthumous promotion after death).He joined Jagdgeschwader 2 (JG 2) as a Lieutenant upon completion of his training