Complex sentence: In April 1944, as a part of Generaloberst Hans-Valentin Hube's German 1st Panzer Armythe division was trapped in the Kamenez-Podolsky Pocket and was involved in the breakout.
Split into simpler sentences: In April 1944, as a part of Generaloberst Hans-Valentin Hube's 1. Panzerarmee the division was trapped in the Kamenez-Podolsky Pocket and was involved in the breakout.