The Key to Lisbon: The Third French Invasion of Portugal, 1810-11

This study details the preparation, planning and execution of the invasion of Portugal in 1810 by the French Armée de Portugal under Marshal Massena, and the defensive measures taken by the British and their Portuguese and Spanish allies. It also covers the practice of all armies involved during this campaign, working from original sources. These sources provide a different interpretation of some key aspects of the campaign to those which are generally accepted. The work focusses on the str...