sentences:  By September 16, 1946, the communists withdrew their siege on Datong and the campaign concluded with nationalists suffering over 12,000 casualties and the communists suffered several thousand casualties.For the nationalists, the campaign was a failure because although the nationalists were able to beat off enemy attacks on the two cities, majority of rural area in the region had fallen into the enemy hands, and the nationalists defenders of the two cities were isolated, which greatly drained the nationalists resources later as the nationalists attempted to re-supply the isolated cities, resulting in nationalist defense lines overly stretched.Furthermore, the nationalists were infatuated with conquering as much land as possible instead of inflicting heavy casualties on their enemy, resulting in enemy being escaped with relatively few numerical losses in comparison to that of nationalists themselves.