Sweden declares war on the United Kingdom (1810)

Sweden declared war on the United Kingdom in November 1810, following its earlier alliance against Napoleon. This shift resulted from the Treaty of Paris, which forced Sweden into the Continental System, and the election of Jean-Baptiste Bernadotte as crown prince. The conflict remained largely on paper, with trade continuing despite the formal state of war.

Episodes

Background and detail

Background. Prior to 1810, Sweden and the United Kingdom were allies against Napoleon. However, Sweden's defeat in the Finnish War and the Pomeranian War led to treaties that altered its diplomatic stance. The Treaty of Paris, concluded in January 1810, compelled Sweden to join the Continental System, a trade embargo against the UK, setting the stage for a formal declaration of war.

Political Shift. The political landscape changed significantly in 1810. The death of the elected crown prince Charles August in May was followed by the election of French Marshal Jean-Baptiste Bernadotte in August. Under Bernadotte's influence, Sweden's relationship with Napoleonic France deteriorated, creating conditions that contributed to the declaration of war against the United Kingdom.

Nature of Conflict. The war was described as bloodless and existing primarily on paper. Despite the formal declaration, the United Kingdom was not hindered in stationing ships at the Swedish island of Hanö or in trading with the Baltic states. This suggests the conflict was diplomatic rather than military, reflecting the complexities of the Continental System.

People involved

Sources

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