“I wasn't talking about the war as a whole”.
Which war, the invasion of 1810-11, or the three French invasions, of Portugal 1807-11? All three of these invasions were incursions undertaken by French armies, ordered by Napoleon, the first to impose the continental system, the second and third presumably with similar intentions and to drive the British army out of Portugal. The Portuguese court, or rather the representatives of the Portuguese court, in 1808, requested the intervention of their British allies. The regency council – reluctantly – agreed to the development of the Lines of Torres Vedras and the scorched earth policy and were therefore complicit in regards to some of the loss of life caused by the evacuation of territories to the north of the Lines. Whether right or wrong, their judgement at the time was that it was better to relinquish territory in front of the Lines in order to prevent a second occupation of Lisbon. However, the responsibility for the loss of life ultimately lies with those undertaking an unprovoked invasion of Portuguese sovereign territory. Best A