the u.s. 5th army began its attack on 14 april. first, there was a bombing by 2,000 heavy bombers and 2,000 artillery pieces. then troops attacked. by 20 april both corps had broken through the german defences and reached the po valley. 10th mountain division went north. by 19 april, the british 6th armoured division was moving to surround the german armies defending bologna. bondeno was captured on 23 april. bologna was entered on 21 april. u.s. iv corps reached the river po at on 22 april. they went north to verona which they entered on 26 april. british v corps entered padua on 29 april. partisans had captured the german garrison of 5,000.