Cottrell's previous books (The Lost Pharaohs, The Bull of Minos, Lost Cities, etc.) have proved that he can make the distant past come to life and here, with his research on Britain in pre-Roman times, Caesar's raid before full scale operations, and the 40 year campaign of invasion which resulted in 400 years of Roman occupation, he assembles a picture of peoples and their civilizations, the organization of the Roman army, the tactics employed. Careers of young Roman officers are part of the whole as are the training camps for recruited Britons and marching camps; the changes in Roman rule are reflected in the events in Britain; the early period of savagery gives way to more enlightened rule; the great names among the Romans have their opposites among those who defended to their country -- to their death. Basing his information on, and supporting it by, archaeological finds and translations from the sparse records, he offers linked that brings a vividness to remote times and joins if to the present with its parallel. Maps and photographs are visual aids to the text. For the military minded as well as the historical.