In 1643 Torstensson invaded Moravia for the second time, but was suddenly recalled to invade Denmark, when his rapid and unexpected intervention paralysed the Danish defence on the land side, though Torstenson's own position in Jutland was for a time precarious owing to the skilful handling of the Danish fleet by Christian IV of Denmark. In 1644 he led his army for the third time into the heart of Germany and routed the imperials at the battle of Jüterbog on 23 November. At the beginning of January 1645 he broke into Bohemia, and the victory of Jankau on 24 February 1645 laid open before him the road to Vienna. Yet, though one end of the Danube bridge actually fell into his hands, his exhausted army was unable to penetrate any further and, in December the same year, Torstensson, crippled by gout, was forced to resign his command and returned to Sweden in the early summer of 1646.