STORY HIGHLIGHTS
- NEW: North Korea is upset by a recent U.N. security council resolution, an analyst says
- Pyongyang says it plans a new nuclear test and further long-range rocket launches
- These are part of an "all-out action" targeting the U.S., it says
- North Korea has conducted two previous nuclear tests, in 2006 and 2009
Seoul, South Korea (CNN) -- North Korea said Thursday that it plans to carry out a new nuclear test and more long-range rocket launches, all of which it said are a part of a new phase of confrontation with the United States.
The North's National Defense Commission said the moves would feed into an "upcoming all-out action" that would target the United States, "the sworn enemy of the Korean people."
Read more: U.N. Security Council slams North Korea, expands sanctions
Carried by the state media, the comments are the latest defiant flourish from the reclusive North Korean regime, whose young leader Kim Jong Un has upheld his father's policy of pursuing a military deterrent and shrugging off international pressure.
The defense commission statement follows a United Nations Security Council resolution on Tuesday that the United States pushed for, condemning a recent recent rocket launch by North Korea and expanded existing sanctions.
Read more: North Korea silences doubters, raises fears with rocket launch
The North's angry statement "should have been the expected outcome" from the U.N. decision, said Daniel Pinkston, senior analyst for the International Crisis Group covering Northeast Asia.
"I think they are completely outraged and insulted by it," he said.
Read more: N. Korea's launch causes worries about nukes, Iran and the Pacific
North Korea, which often issues bellicose statements in its state media, said Thursday that it rejected all Security Council resolutions concerning it.
It described this week's resolution as "the most dangerous phase of the hostile policy toward the DPRK," using the abbreviated version of its official name, the Democratic People's Republic of Korea.
Read more: U.S. official: North Korea likely deceived U.S., allies before launching rocket
Analyst: Threat meant as a deterrence
The threats toward the United States, a constant theme in the North's propaganda, have more to do with deterrence than a desire for full conflict, Pinkston said.
"I don't believe they have the capability, the intention or the will to invade or destroy the United States," he said. "They wish to deter interference from the U.S. or any outside powers."
Read more: North Korea's rocket launches cost $1.3 billion
North Korea's successful rocket launch last month nonetheless changed the strategic calculations for the United States, showing that the North's missile program is advancing despite an array of heavy sanctions imposed on it.
Analysts say it still has a lot of work to do to master the technology necessary to mount a nuclear warhead on missile or accurately target it.
Read more: South Korean officials: North Korean rocket could hit U.S. mainland
At the same time, Pyongyang has been hinting for a while that a new nuclear test could be in the cards.
Just before the North sent out its latest hostile statement Thursday, a U.S. State Department official was telling reporters in Seoul that Washington hoped that Pyongyang wouldn't go ahead.
Read more: Huge crowds gather in North Korean capital to celebrate rocket launch
"We think that that would be a mistake, obviously," said Glyn Davies, the U.S. special envoy on North Korea. "We call on North Korea, as does the entire international community, not to engage in any further provocations."
North Korea has carried out two previous nuclear tests, in 2006 and 2009, both of which were condemned by the U.N.
Pyongyang didn't say Thursday when exactly it would carry out a third test, but it could happen "at any time," according to Pinkston.
He said that it was hard for anybody outside the North Korean nuclear sector to know if the country is technically ready to carry out the test, but that politically, "it seems an appropriate time."
Demands unlikely to sway North
South Korean defense officials said last year that they believed the North had been in a position to carry out a new test whenever leaders in Pyongyang gave the green light.
North Korea's nuclear program is "an element of threat to peace not only for Northeast Asia but also for the world," Park Soo-jin, deputy spokeswoman for the South Korean Unification Ministry said Thursday.
"North Korea should immediately stop its nuclear test and other provocation and should choose a different path by cooperating with the international community," Park said.
That appears unlikely at this stage, though.
After a failed long-range rocket launch in April, North Korea ignored international condemnation and carried out a second attempt last month. That one succeeded in putting a satellite in orbit, Pyongyang's stated objective.
But the launch was widely considered to be a test of ballistic missile technology. And it remains unclear if the satellite, which the North insists is for peaceful purposes, is functional.
Both North Korea's previous nuclear tests took place weeks or months after long-range rocket launches.
Those tests were carried out under the rule Kim Jong Il, the father of the current leader, and the man who channeled huge amounts of money into North Korea's nuclear and missile development programs.
Kim Jong Il died in December 2011 after 17 years in power, during which the North Korean people became increasingly impoverished and malnourished.
Economically, the country relies heavily on trade with its major ally, China.
CNN's K.J. Kwon reported from Seoul, and Jethro Mullen from Hong Kong. CNN's David Hawley in Seoul contributed to this report.
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