As part of the "IA M51 programme" (Regular Overhaul / adaptation for the M51 missile) Le Téméraire, the last of the three French nuclear-powered ballistic missile submarines (SSBN) to benefit from this upgrade, was transferred on Wednesday, 7 December, from Ile Longue (French for "Long Island", base of the French Strategic Oceanic Force) to dock 8 of the
naval base in Brest, where this large-scale work is carried out with DCNS as prime contractor.