Ouvrage B, Cap Diego Line
Ouvrage B, on the Cap Diego Line is also known as Fort du Centre. Built between 1902 and 1904. This Ouvrage is situated in the centre of the Cap Diego Defence Line, and has two Casemates de Bourges. One Casemate covering Ouvrage C to the North and the other Ouvrage A to the South. There was single central magazine.