"A sometimes informative book about the third invasion of Portugal by the French in 1810-1811, this work by Jean Jacques Pelet, 1st aide-de-camp to Marshal Massena, examines the trials and tribulations of the French as they try to drive the Anglo-Portuguese Army from Portugal.
It concentrates on the problems encountered with difficult terrain, bad maps, a stubborn enemy, the Lines of Torres Vedras, and animosity among the French generals who seemed to prefer fighting among themselves rather than with the enemy.
Napoleon expected much from Massena, but in the end it was the French who left Portugal."