Nuclear Future: Underwater and in the Skies

... defense due to its flight characteristics will constitute a return to a track that had been abandoned when small-scale sub-sonic LRCMs became widespread. For instance, Tu-160 had been developed for heavy hypersonic Kh-90 missiles, while the US even reached ... ... 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?...