Bruce Lenman's hugely ambitious study explores three interacting themes: the growth of England's sprawling colonial empire; its military dimension; and the impact of colonial warfare on national identity. He starts in Ireland, with the renewed assault of English settlers on the Irish Gaeltacht. Under the (Scottish) Stuarts, England then began a dramatic expansion across the North Atlantic. In America, the 'Indian Wars', fought with minimal Crown support, helped forge an independent military capability among the colonists; while, in the West Indies, slave numbers and French intervention forced...