By NICOLE STINSON
It comes as North Korea has been ramping up its missile technology with regular rocket tests, including two intercontinental ballistic missiles launches and its sixth nuclear bomb detonation earlier this year.
North Korea has also threatened to totally destroy the US and warned Donald Trump “should think twice about what terrible consequences the US will face”.
The US President is set to visit the region next month where he will reportedly inspect American forces at one of the largest bases on the Korean Peninsula.
And now a US Government source has revealed the despotic state secretly tested a new type of solid-fuel engine last week.
http://www.express.co.uk/news/world/870781/world-war-3-north-korea-usa-kim-jong-un-donald-trump-ww3-missile-engine-nuclear-threat-WW3
