The campaign against the Low Countries and France lasted less than six weeks. Germany attacked in the west on May 10, 1940. Initially, British and French commanders had believed that German forces would attack through central Belgium as they had in World War I, and rushed forces to the Franco-Belgian border to meet the German attack. The main German attack however, went through the Ardennes Forest in southeastern Belgium and northern Luxembourg. German tanks and infantry quickly broke through the French defensive lines and advanced to the coast.
