A punitive expedition comprising four ships of the line, with two frigates and two bomb galiots, under the command of Frederik Christian Kaas, sailed from Copenhagen in 16 May 1770.

Algiers was not intimidated, and the Danish-Norwegian bombardment ended in failure, as a large part of the crew fell seriously ill due to an outbreak of typhoid.

The Danish-Norwegian contingent fired approximately 75 bombs at the city of Algiers before the attack had to be abandoned.

[2] The De Fire Søstre, a merchant and hospital ship,[3][4] was present with the Danish squadron in the Mediterranean from 1770 to 1771, and its captain, Jens Knudsen, visited the sick who had been landed at Port Mahon.

[5] Today the war is mostly forgotten in Denmark and Norway, because it played a small role in Danish and Norwegian history.