"If you threaten them and your threat is not credible, it's only going to undermine whatever your policy toward them is. And that could be a logical conclusion from what's just happened," said North Korea expert Joel Wit at the 38 North monitoring group, run by Johns Hopkins University's School of Advanced International Studies.
The US military initially said in a statement dated April 10 that Admiral Harry Harris, the commander of Pacific Command, directed the Carl Vinson strike group "to sail north and report on station in the Western Pacific."
Reuters and other news outlets reported on April 11 that the movement would take more than a week. The Navy, for security reasons, says it does not report future operational locations of its ships.
But even Mattis initially misspoke about the strike group's itinerary, telling a news conference that the Vinson had pulled out of an exercise with Australia.
The Pentagon has since corrected the record, saying the ship's planned port visit to Fremantle, Australia, was canceled - not the exercise with Australia's navy.
From April 16-18, the website Go Navy reported that the Vinson was in the Indian Ocean.
A US military official, speaking on condition of anonymity, said the Vinson carried out the exercises after passing through the Sunda Strait and wrapped them up this week.
Key moments | North Korea’s nuclear history
1950s
Nuclear programme begins
The Soviet Union assisted North Korea with its nascent nuclear energy programme.1969
Reports of nuclear weapons development
Chinese intelligence reports first indicated that Pyongyang was embarking on an effort to develop nuclear weapons.1974
Joins Atomic Energy Agency
North Korea joined the International Atomic Energy Agency (IAEA) and permitted international monitors to examine its work.1985
Signs up to NPT
Pyongyang signed up to the nuclear non-proliferation treaty (NPT) after Russia provided it with the technology for four light-water nuclear reactors designed to generate electricity.1986
Yongbyon reactor in operation
The Yongbyon reactor was put into operation, North Korea’s major nuclear facility. Powered by uranium, it is capable of producing weapons-grade plutonium.1993
Leaves NPT
Pyongyang left the NPT after refusing to reveal specific details of its nuclear programme to the IAEA.1994
“Agreed Framework” signed
North Korea and the US signed the “Agreed Framework”. Pyongyang would freeze its graphite-moderated nuclear reactor programme in return for fuel and efforts towards normalised political and economic relations, as well as the construction of two light-water nuclear reactors. North Korea also agreed to abide by its IAEA obligations.1998
Claims of secret nuclear sites
The US claimed North Korea was once again developing nuclear weapons at secret sites.2002
Contravenes agreed nuclear framework
In contravention of the 1994 Agreed Framework, North Korea was discovered to be pursuing uranium enrichment technology and plutonium reprocessing technologies. North Korea told US diplomats that it did indeed possess nuclear weapons.April 2003
Leaves NPT (again)
North Korea again withdrew from the Nuclear Non-Proliferation Treaty.August 2003
Refuses to dismantle nuclear capabilities
Six-party talks open in Beijing, bringing together China, North Korea, the US, South Korea, Russia and Japan. Washington requested the complete and confirmed dismantling of the North’s nuclear capabilities, but Pyongyang refused.February 2005
Declares nuclear weapons
North Korea publicly declared it had nuclear weapons and withdrew from the six-party talks.September 2005
Agrees to scrap nuclear
North Korea agreed a preliminary accord under renewed six-party talks that it will scrap all existing nuclear weapons and nuclear production facilities, rejoin the NPT and allow IAEA inspectors to return.October 2006
First nuclear test
North Korea detonated a nuclear device with an estimated explosive force of less than one kiloton. China, which had reportedly attempted to convince the regime not to go ahead with the test, was given a 20-minute warning and flashed an emergency alert to Washington.October 2006
Second nuclear test
North Korea detonated a second nuclear device and launched a number of short-range surface-to-air missiles. The yield of the test was put at close to 5 kilotons.February 2013
Third nuclear test
An underground explosion at North Korea’s Punngye-ri nuclear test site was detected, with experts estimating the size of the blast at between 6 and 7 kilotons.April 2015
Evidence that Yongbyon has reactor restarted
Satellite pictures suggested that the reactor at Yongbyon, the main nuclear site, may have been restarted.May 2015
North claims to have nuclear weapons capable of hitting US
The Pentagon confirmed that this was theoretically possible, although the North Korean system had yet to be flight tested.December 2015
King Jong-un makes “H-bomb” claims
King Jong-un claimed that his country was prepared to detonate a hydrogen bomb, in the first direct reference by the North to an “H-bomb”. At the time, this claim was greeted with widespread scepticism outside the country.January 2016
“Successful” hydrogen bomb test
North Korea announced that it has conducted a “successful” hydrogen bomb test, which would be its first test of such a device. The announcement came shortly after an “earthquake” with an epicentre close to Punggye-ri nuclear test site was registered.September 2016
“Most powerful nuclear test”
North Korea conducted a fifth nuclear test, its most powerful to date, South Korean military sources said monitors detected a 5.3-magnitude “artificial earthquake” near the North’s main nuclear site.April 2017
New missile test
North Korea fired four ballistic missiles into the sea, as close as 300km (190 miles) to Japan’s north-west coast. The move came directly ahead of a US-China summit aimed at curbing the state’s nuclear weapons programme.
Comments
Post a Comment