In France the equivalent unit is the escadrille des sous-marins nucléaires d'attaque (ESNA), part of the French submarine forces (and before the Second World War, escadrilles de sous-marins).
Reserve submarine divisions also existed after World War II.
The officer in charge of SUBRON ONE is designated Commander Submarine Squadron One or COMSUBRON ONE.
However, unlike a destroyer squadron—which actually moves its staff aboard its ships and deploys with them as an operational Task Element commander—a SUBRON commander and his staff always remain in homeport, and are responsible only for the training, equipping and administering of the ships under its umbrella.
The latter is the senior of the two, and thus also plays a secondary role as Commander, Submarine Force (COMSUBFOR).