Complex sentence: During the final days of the Fifth Phase Campaign, the main body of the 180th Division was encircled during a UN counterattack and, after days of hard fighting, the division was fragmented, and the regiments fled in all directions.
Split into simpler sentences: During the final days of the Fifth Phase Campaign, the main body of the 180th Division was encircled during a UN counterattack. After days of hard fighting, the division fragmented, and the regiments fled in all directions.