Complex sentence: During the attack the commander of the regiment left his post Dempsey, p.240 the regiment became disorganized, abandoning the bridge, and 1st battalion lost its standard Dempsey, p.240, all without firing a shot Gates, p.342.
Split into simpler sentences: During the attack the commander of the regiment left his post Dempsey, p.240 the regiment became disorganized, abandoning the bridge. The 1st battalion lost its standard Dempsey, p.240, all without firing a shot Gates, p.342.