North Korea has been fanning World War 3 concerns by ignoring calls to shut down its nuclear development programme – with leader Kim Jong-un taunting the US with repeated intercontinental ballistic missiles (ICBMs) tests threatening close allies in East Asia.
But US President Donald Trump has been signalling the United States is prepared to use "military force" to end Kim's aggressive rhetoric.
Nuclear deterrence expert Rebeccah Heinrichs said: "Kim in North Korea is feeling the squeeze of this pressure campaign, of this further isolation in the international community and it looks as though he is beginning to take the United States’ position – that we are willing to use military force – seriously.
"I understand people’s apprehension about President Trump’s tweets but President Trump can communicate we are not bluffing.
MSNBC•GETTYNorth Korea news: Donald Trump is reportedly prepared to use military force to destroy Kim's arsenal
"The American Government is serious and willing to use military force to eliminate their nuclear weapons programme if North Korea doesn’t do it on its own. That is a good thing, that gives us credibility."
Pyongyang tested 16 ICBMs in 2017 alone, two of which flew over the Japanese archipelago before crashing into the Sea of Japan.
Ms Heinrichs also called out North Korea's only allies in the region, China, for failing to provide the US with the support needed to rein in the rogue nation.
She said the Chinese Government had helped "in some degrees" by voting in favour of UN sanctions on trade with North Korea but undermined international efforts with its alleged continued sale of oil to Pyongyang.
President Trump can communicate we are not bluffing, that the American Government is serious and willing to use military force
Speaking to Fox News, the Hudson Institute senior fellow continued: "The Chinese have helped in some degrees by voting for sanctions but there are reports that the Chinese now are still selling oil to the North Koreans. That is a major no-no.
"We need to cut off oil, they can’t launch missiles without fuel for their missiles. It doesn’t appear as though the Chinese Government believes the Administration is truly willing to use force if the alternative is to have nuclear ICBM pointed at American cities."
The United Nations Security Council imposed tough sanctions on North Korea after its continued missile testing.
The resolution seeks to ban nearly 90 percent of refined petroleum product exports to North Korea.
Following the UN vote, Donald Trump wrote on Twitter: “The United Nations Security Council just voted 15-0 in favour of additional Sanctions on North Korea. The World wants Peace, not Death!”
But Ms Heinrichs said the North Korean crisis could soon degenerate due to Kim Jong-un's refusal to give up his nuclear arsenal.
And she said the international community should prepare for an even bigger show of missile capability from Pyongyang.
She added: "I think that we are moving towards a path that looks like military conflict unless something changes, and rather quickly.
"I think the last missile test – the Hwasong-15 – was a monster and it demonstrated a clear capability. Every time there is this long break in between missile test is not a good sign.
"It means that the North Koreans are continuing to work on their programme. We need to build up our missile defences because we are moving toward a very scary situation unless something changes."