This study has a two fold objective: First, to evaluate the adequacy of current U. S. Army doctrine for the attack of a built-up area by a ROAD division. Second, in those areas where the present doctrine is found either inadequate or lacking, to develop appropriate doctrine. The evaluation is based on the historical experiences of combat in cities during World War II. The first three chapters are studies of eight different cities in which combat took place, with the majority of the account devoted to the seizure of Brest, France. The last two chapters compare present doctrine with the problems and techniques derived from the historical experiences, and develop doctrine in those areas found lacking.