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,
Naval regions and districts of the Kriegsmarine the sea defense zones became well tested when the Allies invaded western Europe, in particular at the battle of Normandy. Sea Defense zone forces also fought fiercely to avoid losing Germany's submarine bases in France, in one case holding out for several months under Allied siege before surrendering. Naval regions and districts of the Kriegsmarine Naval regions and districts were the official shore establishment of Nazi Germany's Kriegsmarine during World War II. The Kriegsmarine shore establishment was divided into four senior regional commands, who were in turn subordinated to the operational Navy Group commanders who commanded all sea and shore