Dongola was besieged and bombarded by catapults. War continually raged during 1195, when Philip once again besieged Verneuil. He besieged the city and seized it. The Parthians retreated to Nisibis, but this too was besieged and captured. Severus fled to Ravenna, which Maximian besieged. A month later, the hordes besieged Ryazan. Rosecrans retreated to Chattanooga, which Bragg then besieged in the Chattanooga Campaign. In August, Convention troops besieged Lyon. Liudolf retreated to Regensburg, where he was besieged by Otto. With this army, he besieged Exeter. After occupying Madrid, Wellington unsuccessfully besieged Burgos. Burnside settled into entrenchments around the city, which Longstreet besieged. Norwich was besieged and surrendered, and Ralph went into exile. At that time, the Crusaders once again besieged Toulouse. He then besieged and captured Elateia.