Original sentence: By this stage it was clear to all that the Battle Group was experiencing a rolling engagement, and the decision was made to react the Battle Group Quick Reaction Force - an infantry platoon mounted in Bushmaster armoured vehicles, under command Lieutenant Nicholas Perriman.During the crossing, the Platoon Sergeant of the Cavalry Troop, Sergeant Shuan Gibson bravely stopped his vehicle on the top of the bridge - greatly exposing himself to RPG fire - and with his side arm engaged insurgents who were located on the bridge, and whom were engaging the securing infantry.This platoon was directed to the North of the city of An Nasariyah - the provincial captial of Dhi Qar, and the fourth largest city in Iraq - with the task securing a firm foothold along Route Bismarck for the Battle Group before it commenced its dangerous run through the heart of the city
Edited sentence: By this stage it was clear to all that the Battle Group was experiencing a rolling engagement, and the decision was made to react the Battle Group Quick Reaction Force—an infantry platoon mounted in Bushmaster armoured vehicles, under command Lieutenant Nicholas Perriman.During the crossing, the Platoon Sergeant of the Cavalry Troop, Sergeant Shuan Gibson bravely stopped his vehicle on the top of the bridge—greatly exposing himself to RPG fire—and with his side arm engaged insurgents who were located on the bridge, and whom were engaging the securing infantry.This platoon was directed to the North of the city of An Nasariyah—the provincial captial of Dhi Qar, and the fourth largest city in Iraq—with the task securing a firm foothold along Route Bismarck for the Battle Group before it commenced its dangerous run through the heart of the city