After capturing the island of Als, Stefan Czarniecki's division was transported back to the Jutland Peninsula, where, together with Imperial troops, they began the assault on Kolding, the former residence of Danish kings,[5] which was defended by a Swedish company of not much more than 100 men.

[5] The defenders of the fortress also repelled a second attack, and when Czarniecki proposed that they surrender, they firmly refused.

The third assault, carried out on December 25, proved successful, and the Poles managed to breach the castle.

When one of the dragoon reached the powder magazine and ignited the ammunition, a massive explosion occurred, destroying part of the castle- eliminating the Swedish soldiers defending that section as well.

[5] The Swedes tried to retake the city, but Czarniecki's forces repelled their landing on the Jutland Peninsula.