Complex sentence: Together with the 1.SS-Panzer-Division "Leibstandarte SS Adolf Hitler", Bäke's tanks opened a route of escape for the trapped Germans and held it open while many escaped.
Split into simpler sentences: Together with the 1.SS-Panzer-Division "Leibstandarte SS Adolf Hitler", Bäke's regiment was thrown into action to open an escape corridor. During the battles, Bäke's tanks opened a route of escape for the trapped Germans and held it open while many escaped.