Complex sentence: Following obligatory service in the Reichsarbeitsdienst he was inducted into the Luftwaffe in November 1937 and furthered his flight training at Luftkriegsschule Wildpark-Werder, in 1939 shortly before the start of the Second World War he received his commission as a Luftwaffe Lieutenant.
Split into simpler sentences: Following obligatory service in the Reichsarbeitsdienst he was inducted into the Luftwaffe in November 1937 and furthered his flight training at Luftkriegsschule Wildpark-Werder. In 1939 shortly before the start of the Second World War he received his commission as a Luftwaffe Lieutenant.