Submarine-launched missile submarines can launch nuclear-warheading ballistic missiles. These submarines have been around over 60 year and can be used in a wide range of military missions. They are an integral part any nation's navy as nuclear warheads can be crucial in defending against an attack from an adversary.
SSBN-726 Class
Cmdr. Michael Cockey. For sea trials, the submarine was returned to Puget Sound Naval Dockyard in Bremerton and Naval Base Kitsap–Bangor in February 2006. It was equipped with two dry deck shelters.
Le Triomphant class
French Navy has just begun to build new ballistic-missile submarines. These new submarines are approximately the same size as existing ones but have significantly more speed and endurance. These submarines are capable of diving to more than 300 meters, and can remain submerged for over 60 days.
Delta III class
The Russian Navy operates the large, ballistic-missile submarine of the Delta III class. The Soviet Union constructed the submarine and named it after Project 667BDR Kamar.
Borei class
Russia's second strike nuclear deterrent program also includes the Borei Class ballistic missile submarine. To improve its capabilities, the submarine has been modified extensively. The submarine is designed so that it can glide through the ocean while remaining undetectable. This is accomplished by including features such as vertical and towed Sonar arrays. This design is complete with thrusters.
Ohio class
The Ohio class comprises 14 nuclear-powered ballistic missile submarines and four cruise missile submarines. Each submarine weighs in at 18.750 tons when submerged, making it one of the largest submarines ever made for the U.S. Navy.
China's ballistic missile submarine program
China's missile submarine program for ballistic missiles is still in the early stages. China's current fleet, six ballistic missile subs, dwarfs that of America's Navy. The program is expanding, though China's missile submarines don't have the sophistication of the US boomers.