Nuclear Future: Underwater and in the Skies

... first new Columbia-class missile submarine Chinese H-6N strategic bomber China is actively building the naval component of its SNF: 094-class submarines are already nearly world-class and can be put on combat standby duty, while prospective 096-class submarines ... ... with China-built newer Hangor-class submarines Even North Korea has a rather impressive program for testin several types of SLBMs, although it might be having difficulties with building submarines Why is there such unanimity and why are they so popular?...