Corps Commanders examines how five strikingly dissimilar British and Canadian generals fought battles and fit into the British Empire armies of the Second World War. The three Canadians controlled British formations and served under British army commanders, and the two Britons worked for and led Canadians as well. Such inter-army adjustments were fairly simple because all Anglo-Canadian commanders and staffs spoke the military language of the Camberley and Quetta staff colleges. Gunners from Montreal understood guardsmen from London -- no small advantage when coordinating coalition battles involving thousands of troops. Delaney"s book offers invaluable insight into interoperability and how men animate armies in war.