The second phase was to provide a separate entry block less than 100 metres (330 ft) behind the ouvrage.

[4] The blocks are linked by deep underground galleries, which also provide space for barracks, utilities and ammunition storage.

[5] The 1940 manning of the ouvrage under the command of Lieutenant Lussus comprised 135 men and 2 officers of the 161st Fortress Infantry Regiment.

[9] The Casernement de Ban Saint-Jean provided peacetime above-ground barracks and support services to Village Coume and other positions in the area.

[4][10] Village Coume played no significant role in either the Battle of France in 1940 or the Lorraine Campaign of 1944.