The region bordering Switzerland was treated as a low-priority area, but received a substantial number of casemates and blockhouses nonetheless. Initial plans floated in 1934 proposed four artillery ouvrages at Stetten, Ranspach-le-Haut, Bettlach and Trois-Maisons, with four more infantry ouvrages at Uffheim, Helfrantzkirch, Ranspach-le-Haut, Bettlach and Oltingue. These were to be supported by 68 casemates. The project was cancelled in 1936 and were replaced by a more modest program that created three centers of resistance at Sierentz, Bettlach-Oltingue and at Roedersdorff-Blochmont. A total of six blockhouses were built, each housing two 75mm guns, with six more blockhouses armed with two 47mm guns, two machine guns and two automatic rifles.