The Trump administration says North Korea's pursuit of nuclear weapons is an urgent national security threat.
North Korea's U.N. Mission says the government is prepared for "a total war" with the United States. A mission press statement on Wednesday said North Korea will "surely win a victory in the death-defying struggle against the U.S. imperialists."
A statement issued by the State Department say the U.S. will try to contain the North Korean threat by exerting pressure through diplomatic measures and tighter economic sanctions.
President Donald Trump aims to pressure North Korea into dismantling its nuclear, ballistic missile and proliferation programs, and is engaging the international community to achieve that and persuade Kim Jong Un's government "to de-escalate and return to the path of dialogue."
However, the North Korean communist regime is standing firm.
Leaders there say the country will "never be frightened" by the Trump administration's effort to bring the country "into submission" and will "go to go to the end if the U.S. wants to remain unchanged in its confrontational stance."
It said the DPRK's "heaviest counteractions" in response to "provocations of any forms and levels from the U.S." will include a sudden pre-emptive attack involving maneuvers on the ground, in the seas, underwater and in the air "and various other methods."
Meanwhile, the U.S. "remains open to negotiations" to achieve denuclearization of the Korean Peninsula, but warns, "we remain prepared to defend ourselves and our allies."