Complex sentence: He volunteered to join the SS in May 1933 and given the SS service number 217.862 and his NSDAP party number was 1.150.866, after being enrolled he was assigned to the SS Standarte "Deutschland".
Split into simpler sentences: He volunteered to join the SS in May 1933 and given the service number 217,862. After enlistment, he was assigned to the SS Standarte "Deutschland".