 Complete the following phrase:  After the surrender of a French army corps at Bailén and the loss of Portugal, Napoleon was convinced of the peril he faced in Spain. With his Armée dEspagne of 278,670 men drawn up on the Ebro, facing 80,000 raw, disorganized Spanish troops, Napoleon and his marshals carried out a massive double envelopment of the Spanish lines in November 1808. Napoleon struck with overwhelming strength and the Spanish defense evaporated at Burgos, 