Complex sentence: On 22 August, the first units of the 36th Division arrived, reinforcing Taskforce Butler, still the Allied troops were short of supply and lacked enough men to directly attack the German escape route.
Split into simpler sentences: On 22 August, the first units of the 36th Division arrived, reinforcing Taskforce Butler. However, the Allied troops were still short of supply and lacked enough men to directly attack the German escape route.