British Army during the Napoleonic Wars led to the Battle of Trafalgar, a French fleet carrying 6,500 troops briefly captured Dominica and other islands but subsequently withdrew. In 1808, once the British were allied to Portugal and Spain, they were able to concentrate their forces and capture the French possessions one by one; Cayenne and Martinique in 1809, and Guadeloupe in 1810. Haiti was left to the insurgent armies. In 1805 news arrived in London that Napoleon had broken up his invasion camp at Boulogne, and was marching across Germany. The Prime Minister of the United Kingdom William Pitt immediately equipped an army of 15,000 men,
Coalition forces of the Napoleonic Wars 300,000; and Russia, 600,000. The British Army forces consisted of 250,000 troops at their height. This is notable as it consisted of 2% of the entire British population during that time. Integral divisions of the British army were the King's German Legion (18,000 men), the Brunswick troops, and several other troops from France, Switzerland and the Netherlands. While Great Britain played a major role in various campaigns on land, at sea the Royal Navy was the dominant part of the allied naval power, and succeeded in destroying French naval power in a series of major sea battles culminating in the