Complex sentence: The successful capture of the village prevented the German army from using it as a staging area to launch attacks on the River Orne and Caen canal bridgeheads and the Germans never seriously attempted to break through the 6th division's lines again.
Split into simpler sentences: The successful capture of the village prevented the German army from using it as a staging area to launch attacks on the River Orne and Caen canal bridgeheads. The Germans never seriously attempted to break through the 6th division's lines again.