Original sentence: With the successful breakout of Allied forces following Operation Cobra, most of the Panther regiments were wiped out in the retreat through the Falaise Gap as the German forces were forced to abandon almost all of their armored vehicles
Edited sentence: Eventually, most of the Panther regiments in Normandy were wiped out in the retreat through the Falaise Gap as the German forces were forced to abandon almost all of their armored vehicles.However, the Panther tank forces were stopped cold with heavy air attacks by Allied fighter bombers, and decimated by further armor and infantry assaults.This culminated in the Battle of Arracourt (September 18-29), in which the Panther tank forces suffered heavy losses.Through September and October, a series of undersized Panzer-Brigades equipped with Panther tanks were sent into France to try to stop the Allied advance with counterattacks.With the successful breakout of American forces from Normandy following Operation Cobra, Hitler ordered a counterattack Operation Luttich to cut off the rapidly advancing U.armored forces