However , by this time , Rommel had been forced to abandon North Africa after a defeat by Montgomery at El Alamein , and the Wehrmacht had encountered serious casualties that it could not replace .
The tank battle of Kursk is one example .
By this time , Rommel had been forced to abandon North Africa after a defeat by Montgomery at El Alamein , and the Wehrmacht had encountered serious casualties that it could not replace .
The tank battle of Kursk is one example .