Submarine forces (France)
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"ESNA" redirects here. For other uses, see Esna (disambiguation).
- the force océanique stratégique (FOST), made up of four ballistic missile submarines, based at île Longue
- the escadrille des sous-marins nucléaires d'attaque (ESNA), the nuclear attack submarine squadron made up of 6 SSNs, based at the Toulon arsenal
The commander of FOST (ALFOST) is also in overall command of the whole submarine force, under the authority of the chef d'état-major de la marine.
-  - French Navy site