The M1 MSBS was the first French

submarine-launched ballistic missile A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from Ballistic missile submarine, submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which ...

Overview

In French, MSBS is the abbreviation for ''Mer-Sol Balistique Stratégique'', or Sea-Ground Strategic Ballistic Missile. It has two stages. It was deployed on the ''Redoutable''-class SNLEs (''Sous-marin Nucléaire Lanceur d'Engins'') (Device-launching Nuclear Submarine) or SSBNs from 1971 to 1975. It was replaced by the M2 MSBS in 1974–75.MSBS M1 at Astronautix.com
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References

Submarine-launched ballistic missiles of France Nuclear missiles of France Cold War weapons of France Submarine-launched ballistic missiles of the Cold War Military equipment introduced in the 1970s {{France-hist-stub