Charles Esdaile, in "The Peninsular War: A New History", writes: "In military terms, Moore's decision to retreat was therefore probably sensible enough but in other respects it was a disaster ... Having failed to appear in time ... then allowed Madrid to fall without a shot, the British now seemed to be abandoning Spain altogether." Also, "Even worse than the physical losses suffered by the allies was the immense damage done to Anglo-Spanish relations. ... de la Romana ... openly accusing Moore of betrayal and bad faith." Finally, "... the occupation (by the French) of the most heavily populated region in the whole of Spain".