I love the Navy we do many things but the main strategic task of the navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles and other field of work. 
I don't know much about the Navy. My best friend's husband used to serve in the Navy though.
-lanes, deter or confront pirates, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications (blue-water navy), and something in between (green-water navy
-range ballistic missiles and Submarine-launched ballistic missiles necessary for strategic deterrence, while smaller warheads have been used as free-fall bombs and on airborne cruise missiles or short-range ballistic missiles (Pluton and Hadès).
France Active.
France now only deploys submarine-launched ballistic missiles, with all land based IRBMs decommissioned in September 1996. The French Air Force and French Navy retain aircraft-carried nuclear-tipped cruise missiles (SCALP-EG) to fulfill the pre-strategic role (tactical-sized weapons