Sabre-rattling between the two countries had cooled this month after the hermit state allowed talks with the South over the upcoming Winter Olympics.
However, Mr Trump is still hugely concerned about the danger posed by crackpot dictator Kim Jong-un’s nuclear ambitions.
But state media blasted the US again this week, with Kim mouthpiece newspaper Rodong Sinmun lashing out in a bizarre editorial.
It accused Mr Trump of misusing his power to create an “empire of evils” that would “create chaos”.
The paper said: “America first is the chauvinist doctrine which is driving the US into isolation and ruin as it persists in inequality and racial discrimination in the international relations and the war-first doctrine wrecking global peace.
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“It is also extreme state egoism driving the US into isolation politically and economically.
“America first is being buffeted by criticism of the international community as it is a doctrine to turn the world into a theatre of rampage by the jungle law through highhanded and arbitrary practices.
“It is natural in the light of the law of causality that the empire of evils wielding America first stick for aggression and plunder in the world is hit by the international community.
“America first, Yankee-style hegemonic doctrine saying that everything should exist for the US, accelerates isolation and ruin of the empire of evils in all aspects of politics, economy, military affairs and diplomacy.”
It comes as the US said today that Pyongyang had not yet demonstrated it had all the components of an intercontinental ballistic missile – but may still be capable of striking the US without warning.
Air Force General Paul Selva said of Kim: “What he has not demonstrated yet are the fusing and targeting technologies and survivable re-entry vehicle.
“It is possible he has them, so we have to place the bet that he might have them, but he hasn’t demonstrated them.”
In November, North Korea said it had successfully tested a new type of missile that could reach all of the US mainland and South Korea.
At the time, US-based experts said data from the test appeared to support that.
General Selva warned if conflict were to break out, it was unlikely the US would be able to get an early indication of North Korean launches.
He said: “It is very unlikely that in a tactical situation, we would get any of the indications and warning that would precede a launch other than if we got lucky and saw the movement of the launch mechanism to the launch platform.