Complex sentence: As the economy recovered and the supply of labour became a more serious issue, the OT was able to draw on conscripted (i.e., compulsory) workers, from within Germany through the Reich Labour Service ("Reichsarbeitsdienst", RAD) from 1935.
Split into simpler sentences: As the economy recovered and the supply of labour became a more serious issue. The OT was able to draw on conscripted (i.e., compulsory) workers, from within Germany through the Reich Labour Service ("Reichsarbeitsdienst", RAD) from 1935.