Portugese Legion. At the service of Napoleon, the Portuguese Legion fought in the campaigns of Germany, Austria and Russia, suffering heavy casualties. It was present in the battles of Wagram, Smolensk, Vitebsk and Borodino (Moscow). Being highly regarded by Napoleon, the troops of the Legion were referred by him as the "Black Infantry". The Legion was disbanded at 5 May 1814, with only about 1000 of its soldiers surviving and returning to Portugal.