The Battle of Køge was a notable engagement occurring during the British campaign in Denmark, which was part of the larger context of the Napoleonic Wars. In this period, the British were deeply concerned about the implications of Napoleon's dominance over Europe, especially with respect to the Danish fleet, which posed a potential threat if aligned with the French. Under the command of Sir Arthur Wellesley, who later became the Duke of Wellington, British forces landed in Denmark with the dual aim of protecting the Danish fleet from coming under French control and establishing British dominance in the region.

On the outskirts of Copenhagen, Wellesley’s troops confronted a hastily gathered Danish militia. Despite being outnumbered, the British army exhibited superior tactical organization and battlefield discipline. The engagement was characterized by decisive maneuvers and effective use of artillery, leading to the quick dissolution of the Danish lines. Wellesley’s ability to engage efficiently with the militia showcased not only his military acumen but also the effectiveness of British military doctrine.

The aftermath of the battle saw a consolidation of British control over vital areas in Denmark. British forces were able to secure Copenhagen, which further ensured that the Danish navy would not become an asset for Napoleon's campaigns. The battle firmly established Wellesley's reputation as a competent military leader, paving the way for his future successes in the Peninsular War and ultimately contributing to his legacy as one of Britain’s prominent generals.