156e régiment d'infanterie de forteresse

Marching regiment

Infantry Regiment (French: 156e Régiment d'Infanterie de Forteresse), and the 160th Fortress Infantry Regiment (French: 160e Régiment d'Infanterie de Forteresse)

Fortified Sector of Haguenau

sub-sector: 22nd Fortress Infantry Regiment (164e Régiment d'Infanterie de Forteresse (RIF)), Lt. Colonel Lemai, followed by Chef de Bataillon Fabre in May 1940

Fortified Sector of Faulquemont

Transferred to the SF Boulay. 156th Fortress Infantry Regiment (156e Régiment d'Infanterie de Forteresse (RIF)), Lt. Colonel Milon, command post at Éperon