Charles Oman,
A History of the Peninsular War…
“ Summing up the faults of the Spanish army, its depleted battalions, its small and incompetent cavalry force, its insufficient proportion of artillery, its utter want of commissariat, we find that its main source of weakness was that while the wars of the French Revolution had induced all the other states of Europe to overhaul their military organization and learn something from the methods of the French, Spain was still, so far as its army was concerned, in the middle of the eighteenth century. ”
