One of the motives of the expedition was the reversal of several of the old and unfair treaties which stated that Sweden and Denmark would be required to pay an annual tribute to the Moroccan sultanate in order to be granted safe passage from the Barbary pirates.

The Ottomans strengthening their control over Tripoli and the French invasion of Algiers in 1830 were all events that greatly weakened the pirates and the annual payment of tributes to the barbary states was, for the most part, a thing of the past by 1830.

[2][1][4] However, Sweden-Norway and Denmark were notable exceptions as they were still being extorted for money by Morocco and merchants from said countries would have to regularly be escorted by their respective navies.

[3] In 1843, the Danish corvette Flora, under Captain Paludan, received a secret order to travel down to Morocco with a small fleet in an attempt to end the annual tribute to the sultan.

[2] Sweden-Norway was also being extorted for money by the Barbary pirates at this and was therefore willing to contribute to the military pressure put upon Morocco to end their own annual payment of tributes.

[3][8] The flotilla would enter the Mediterranean the next day on the 28th, they would sail by Tanger where they would be met by raised flags by the local Portuguese and British consulates before anchoring.

[3] The festivities continued on New Year's Eve where the Swedish, Norwegian, and Danish sailors would sing their respective national anthems during heavy rain as the clock turned 12.

[2][3] Negotiations reached a breakthrough in April in Larache where the sultan finally agreed to the Swedish/Norwegian and Danish demands to end the annual tribute, borrowing one last payment of 133 532 riksdaler from Sweden-Norway.

[2][3][6][9] However, until the treaty would become ratified, the fleets of Denmark and Sweden-Norway would continue to guard Swedish-Norwegian trade flowing through the area from any attacks from Morocco.

[2] The corvette Carlskrona would cease guarding Swedish-Norwegian trade and received orders to conduct a new voyage towards Saint Barthelemy in July after the treaty was ratified.