Complex sentence: In August 1944 he was selcted to attend a Regimental Commanders and armoured vehicle training course at Fallingbostel and after he completed the training course was posted to the 10th SS Panzer Division "Frundsberg" and given command of the 22nd SS Panzer Grenadier Regiment.
Split into simpler sentences: In August 1944 he was selected to attend a Regimental Commanders and armoured vehicle training course at Fallingbostel. After he completed the training course he was posted to the 10th SS Panzer Division "Frundsberg" and given command of the 22nd SS Panzer Grenadier Regiment.