Lorient

Keroman Submarine Base was a German U-boat base located in Lorient during World War II. Großadmiral Karl Dönitz decided to build the base on 28 June 1940. Between February 1941 and January 1942 three gigantic reinforced concrete structures were built on the Keroman peninsula. They are called K1, K2 and K3.

Gâvres (Breton: Gavr) is a commune in the Morbihan department of Brittany in north-western France.

Port-Louis (Breton: Porzh-Loeiz) is a commune in the Morbihan department of Brittany in north-western France. Inhabitants of Port-Louis are called in French Port-Louisiens.

SMS Regensburg was a light cruiser of the Graudenz class built by the German Kaiserliche Marine (Imperial Navy). She had one sister ship, SMS Graudenz. The ship was built by the AG Weser shipyard in Bremen, laid down in 1912, launched in April 1914, and commissioned into the High Seas Fleet in January 1915.

The Port of Kergroise is a commercial port located in the district of Kergroise, Lorient, on the south coast of Brittany, France. It is owned by the Region of Brittany since 2007 and managed by the Chamber of Commerce and Industry of Morbihan. Based on the annual tonnage processed, it is ranked as the 14th most important commercial port in France.