The Commission for Organizing the Fortified Regions ((CORF)) is a French military organization created on 30September 1927 by the Minister of War Paul Painlevé to study and carry out border fortification.[1] Its creation was not a spontaneous decision but the result of a long and deep reflection on how best to defend the borders of France.[2]
The acronym CORF also refers to a type of fortification, be it ouvrage (earthwork), bunker, observatory or shelter, whose plans were drawn up by the commission and form the most powerful part of the Maginot Line.