North Korea sparked fears of World War 3 after it continued its international condemned intercontinental ballistic missile testing.
US President Donald Trump threatened to “destroy” the hermit nation and has used his tour of Asia to continue to mount pressure on Kim Jong-un to halt his nuclear ambitions.
The American also hinted he would be willing to start negotiations with North Korea in order to find a diplomatic solution to the crisis.
However, Mr Trump must maintain the appearance that he is ready to go to war at the drop of a hat, according to a political analyst.
Fox News’ Pete Hegseth warned North Korea will not come to the negotiating table unless they genuinely fear the US President is genuinely ready to decimate the hermit nation.
Hegseth said: “You don’t do so to in order to ratchet up a nuclear conflict, you do so to tell the Kim Jong-un regime you will go no further.
“That’s why the President wanted to go to the DMZ, he wants to say ‘we will go to war if necessary, to prevent living nuclear blackmail from you.’
“We would prefer diplomacy, we avoid war, that’s how you avoid death and how this is ultimately resolved.
“They have to believe that we’ll do something militarily or else diplomacy has no chance.”
North Korea has accused Mr Trump and the US of heightening tensions in the region after the US President delivered a speech in South Korea.
North Korean officials said: “The United States is threatening us with nuclear aircraft carriers and strategic bombers.
“They are challenging us with the most vicious and demeaning provocations but we will counter those threats by bolstering the power of justice in order to take out the root cause of aggression and war.”
Mr Trump had warned North Korea it will face disaster unless its despot leader abandons his nuclear ambitions.
The US President said: “The weapons that you are acquiring are not making you safer, they are putting your regime in grave danger.
“Every step you take down this dark path increases the peril you face.”
Mr Trump spent two days in South Korea as part of his 12-day tour of Asia, telling Seoul’s national assembly he is ready to find a diplomatic solution to the North Korea crisis.