Who is at war in 1803?

In 1803, Britain and France were engaged in the Napoleonic Wars, which erupted after the breakdown of the Treaty of Amiens. The conflict primarily pitted Britain against France, led by Napoleon Bonaparte, as tensions escalated over territorial ambitions and trade. This marked the beginning of a series of conflicts that would dominate European politics for over a decade. Other nations, including Spain and various German states, would also become involved as the wars progressed.