 Complete the following phrase:  After Corunna, Soult turned his attention to the invasion of Portugal. Discounting garrisons and the sick, Soults II Corps had 20,000 men for the operation. He stormed the Spanish naval base at Ferrol on 26 January 1809, capturing eight ships of the line, three frigates, several thousand prisoners and 20,000 Brown Bess muskets, which were used to re-equip the French infantry. In March 1809, Soult invaded Portugal through the northern corridor, with Francisco da Silveiras 12,000 Portuguese troops unraveling amid riot and disorder, and within two days of crossing the border Soult had taken the fortress of Chaves. Swinging west, 16,000 of Soults professional troops attacked and killed 4,000 of 25,000 unprepared and undisciplined Portuguese at Braga at the cost of 200 Frenchmen. In the 