In North Korea’s effort to become a nuclear power capable of striking the United States and its allies, leader Kim Jong-un has hinted at what his scientists and weapons experts are achieving. Over the past two years, the country has moved from a starter nuclear program to possessing the technology to at least strike the U.S. Pacific territory of Guam.
On Tuesday, the isolated nation fired a missile over Japan, one of Washington’s biggest allies in the region, prompting warnings to residents to take cover.
Most Western experts accept that North Korea is close to putting a nuclear warhead on an intercontinental ballistic missile (ICBM) that can reach the continental United States, but this has not been independently verified.
Here are 10 of the major steps leading to the standoff between North Korea and the United States.
Jan. 6, 2016
After four years in power, Kim Jong-un says his country can produce a hydrogen bomb, the first step toward a nuclear weapon that could target the United States. The nation tests a device, but Western experts are not convinced it is a genuine hydrogen bomb.
Feb. 7, 2016
North Korea sends up a satellite. The United States calls this a disguised test of an engine powerful enough to launch an ICBM.
March 9, 2016
North Korea claims it can miniaturise a nuclear device to fit onto a missile.
June 23, 2016
North Korea says it has successfully tested an intermediate range ballistic missile (IRBM), with a range of 3,200 to 5,500 kilometres. Kim Jong-un claims the country can now attack “Americans in the Pacific operation theater,” including the territory of Guam.
Sept 9, 2016
North Korea conducts its fifth and largest nuclear test on the anniversary of the country’s founding. It says it has mastered the ability to mount a warhead on a ballistic missile.
April 15, 2017
North Korea reveals a new ICBM design, displaying the missiles at a military parade to mark the birthday of founding leader Kim Il-sung. Within three months, the missiles are tested.
July 4, 2017
North Korea tests an ICBM for the first time, saying it can launch a missile that can reach the continental United States. The missile, Hwasong-14, is tested again three weeks later, this time in a night launch.
Aug 8, 2017
North Korea’s army threatens to fire missiles towards Guam in an “enveloping fire.” The message comes hours after President Donald Trump warns Pyongyang that it will be “met with fire and fury” if North Korea does not stop threatening the United States.
Aug 23, 2017
North Korea publishes photographs of Kim beside a diagram of what appears to be a new ICBM. Weapons experts say it will be more powerful than the missiles tested by Pyongyang in July, and could have Washington and New York within range.
Aug 29, 2017
North Korea fires an intermediate range Hwasong-12 missile over northern Japan, prompting warnings to residents to take cover. The missile falls into the Pacific Ocean, but sharply raises tensions in the region.
Sept 3, 2017
North Korea conducts is 6th and most powerful nuclear test which experts think may have been 17 times stronger than the nuclear bomb that hit Hiroshima at the end of the second world war.
Sept 11, 2017
UN votes in favour of more sanctions on North Korea. US President Donald J Trump remarks they are a "very small step" and "nothing to what ultimately will have to happen".
Sept 14, 2017
North Korea threatens to "sink" Japan and turn the US to "ashes and darkness".
Sept 15, 2017
North Korea fires a missile at 6.57am over Hokkaido, Japan, that travels 3,700km, proving that on a different trajectory it could have reached the US territory of Guam.