08-01-2017, 09:53 PM
NK is conducting repeated tests of its ability to "cold launch" missiles from submarines, while its new, large sub is traveling further from home than ever before. The Pentagon has confirmed NK's most recent missile launch could probably reach Chicago. When it can launch that missile from a submerged sub with an endurance of a few weeks, and builds a few more such subs (so that one can be at sea at all times) it will have achieved a credible nuclear deterrent that the US is unlikely to challenge.
US detects 'highly unusual' North Korean submarine activity
http://www.cnn.com/2017/07/31/politics/n...index.html
For reference, Britain's nuclear deterrent relies on 4 subs (which are nuclear-powered, so have much greater endurance than NK's, but the comparison is still relevant).
Quote:Carried out on land at Sinpo Naval Shipyard, Sunday's ejection test is the third time this month -- and fourth this year -- that North Korea has conducted a trial of the missile component that is critical to developing submarine launch capabilities, according to the US defense official.
US officials also noted that a North Korean Sang-O submarine was operating in the Yellow Sea and the length of its deployment was notable. Two Romeo submarines were detected in the waters off Japan -- each one operating in the area for about a week.
US detects 'highly unusual' North Korean submarine activity
http://www.cnn.com/2017/07/31/politics/n...index.html
For reference, Britain's nuclear deterrent relies on 4 subs (which are nuclear-powered, so have much greater endurance than NK's, but the comparison is still relevant).