Pentagon chief James Mattis says any
threat to the US or its allies by North Korea will be met with a
"massive military response".
Pyongyang says it has successfully trialled a hydrogen bomb that could be loaded on to a long-range missile.
The move has drawn international condemnation.
North Korea has defied UN sanctions and international pressure by developing nuclear weapons and test missiles that could potentially reach the USA.
Note EU-Digest: All.this news hype (CNN etc.) coming from the US about N.Korea rockets and bombs and the need for revenge is totally ridiculous. If North Korea would launch one rocket on any country, including the US, or neighboring countries, they know they will be totally destroyed. But if the US is crazy (hopefully they are not) to start a.preventive war it could mean a total global conflict and the end of us all. Economic isolation and negotiations is the only way to go.
Read more: North Korea nuclear threat: Mattis warns of 'massive military response' - BBC News