SEOUL, South Korea -- North Korea on Monday canceled the armistice agreement that nearly 60 years ago brought a cease-fire to the Korean War, leaving a world of analysts wondering how far the secretive police state will go to show its displeasure with South Korea and its American ally, which still has 28,500 troops based here.
The move, reported by the official Rodong Sinmun newspaper, was anticipated Pyongyang had said last week that it intended to do so in the wake of new United Nations sanctions over its nuclear weapons program. But the ramifications of the development the papers cited a military spokesman as saying the armistice had been scrapped completely are far from clear.
Pyongyang is infamous for issuing dramatic but empty threats, like turning its enemies into an apocalyptic sea of fire. The North has also announced on several previous occasions that it was pulling out from the armistice, most recently in 2009.
So on Monday evening, life appeared from the outside to go on as normal in South Koreas sprawling capital, which lies just 31 miles from the North Korean border. Lights twinkled atop skyscrapers, young men wearing hipster glasses waited for buses, and cars zipped across a lacework of urban roadways.
Yet this crisis has a graver cast than previous North Korean bombast. In December, North Korea launched a satellite into outer space, a step seen as an advance in its ballistic missile program. Then last month, the country conducted a successful test of a nuclear weapon.
South Korea said Monday that its calls to a hotline maintained between the two countries went unanswered. Seouls Ministry of Unification said that the North seems to have disconnected the emergency link, according to South Koreas Yonhap News Agency.
The last time North Korea disconnected the hotline, in 2010, was a year when the North killed four South Koreans when it shelled an island and was accused of torpedoing a South Korean naval ship, killing 46 sailors.
But Yonhap also reported that the North had not severed another North-South communication line, this one related to a North Korean industrial zone where South Korean companies operate.
South Koreas new minister of unification, Ryoo Kihl-jae, said Monday that despite the current strains, holding talks is critical. Yonhap paraphrased Ryoo as saying that depending on future developments, South Korea can examine ways to offer humanitarian support to the North.
Still, he noted, It is hard to discuss other matters when the North is making military threats.
North Korea has in the past week threatened to wage war against both the United States and South Korea. Judging the seriousness of those words is complicated by the clutter of past threats that have gone unfulfilled and the fact that North Korea is among the most opaque and unpredictable nations in the world.
The nation is led by Kim Jong Un, a man thought to be 30 years old who took over after his father, Kim Jong Il, died in December 2011. In the days leading up to its talk of obliterating enemies near and far, North Korea hosted former American basketball star Dennis Rodman and three members of the Harlem Globetrotters.
Nonetheless, a state news agency in Pyongyang on Thursday cited a North Korean Foreign Ministry spokesman as saying the nation would exercise the right to a pre-emptive nuclear attack to destroy the strongholds of the aggressors.
The rhetoric from the North has been fueled by its anger over both recent U.N. sanctions and a combined military exercise by U.S. and South Korean forces that began Monday and is scheduled to last until March 21.
A statement Monday from U.S. forces in Korea said that North Korea was notified by the U.N. command on Feb. 21 about the drills schedule and that it is an annual . . . combined exercise that is not related to current events on the Korean Peninsula.
Still, there has been a notable ratcheting-up of tension since the December rocket launching that the United States and others say marked a significant advance in North Korean missile technology.
In response, the U.N. Security Council in January froze the assets of and banned travel by a group of North Koreans with ties to the rocket program and froze the assets of the Norths committee for space technology. The Security Council resolution warned the North not to embark on any further provocations.
Pyongyang, in turn, detonated a nuclear device last month that state media there referred to as a test of a smaller and lighter A-bomb. That description of North Koreas third nuclear test left many observers wondering whether the Hermit Kingdom is pushing to create a nuclear warhead small enough to fit on a long-range missile.
That led to the Security Council on Thursday adding yet more names to the travel ban and asset freeze black list. In addition, the council passed a series of measures meant to stunt the North Korean weapons programs, including authorizing the seizure of bulk cash transiting countries on the way to Pyongyang, and inspecting ships or denying airspace to planes if theyre suspected of transporting banned items to North Korea.
In an effort to squeeze the elite, the sanctions also forbade the export of luxury goods such as expensive jewelry, yachts and racing cars to the North.
Meanwhile, a statement by the North Korean military last week, carried by state press, threatened a nuclear exchange. The U.S. imperialists seek to attack the DPRK even with nuclear weapons, the statement said, using the initials for North Koreas official name, the Democratic Peoples Republic of Korea. Pyongyang, the statement threatened, will counter them with diversified precision nuclear strike.
The North is not thought to currently have the capacity to launch such an attack on the continental United States, but its neighbors to the south were not pleased.
The South Korean military responded by warning it would strike back at the North and destroy its command leadership, if provoked by Pyongyang, according to Yonhap.
The Norths continued willingness to defy international sanctions has appeared to seriously fray relations with its major backer, China. While Beijing sees North Korea as an important buffer between itself and U.S.-allied South Korea, and has long sought to avoid destabilization of Pyongyang that could affect its borders, there has been a series of signals that patience has worn thin.
For instance, an editor at the Study Times, a journal belonging to the Central Party School of the Chinese Communist Party, wrote in a column published by The Financial Times last month that China should give up on Pyongyang and press for the reunification of the Korean peninsula.
Theres been no official announcement that any such step is being considered by Beijing, but an editor from a party publication floating the idea, albeit via a foreign newspaper, made it clear that China is frustrated.
CORRECTION: Paragraph 6 of this version has been changed to correct the name of the Ministry of Unification.