In large part, the importance of Western warfare in this period rests on its role in expanding Western imperial control over much of the world. The reasons for this, and the process itself, were not simply military in nature, although clearly the enhanced capability of Western military systems was crucial. It is less clear how helpful it is to draw on a direct linkage between conflict among, and within, the Western states and their power projection elsewhere. Although a causal relationship may seem logical, the links were less close than might appear to be the case. Different practices and doctrines were involved, and also, in part, different militaries: the Anglo-Indian army that dominated India was not coterminous with the British army which fought in the Napoleonic and Crimean Wars.