Many outside the country saw the launch as an illegal test of long-range missile technology.
We saw in December that they've proven that they can launch a long-range missile.
Last month, North Korea agreed to a series of steps, including a moratorium on long-range missile launches.
WHITEHOUSE: President Obama and President Lee Hold a News Conference
The international community is urging the North Koreans to repeal its announcement to test-fire its long-range missile.
WHITEHOUSE: President Obama and President Lee Hold a News Conference
North Korea's ambitious long-range missile programme is seen as the obvious delivery system for such a weapon.
But just days after the proposed deal, the North announced and eventually executed a long-range missile test.
The North's launch was seen as a cover for a long-range missile test, and prompted UN sanctions.
Both countries agreed that North Korea's announcement to test-fire its long-range missile is a violation of U.N.
WHITEHOUSE: President Obama and President Lee Hold a News Conference
It's a gamble of the highest stakes, maybe weakened by the failure of the long-range missile this past week.
The launch was widely seen as a move to test long-range missile technology.
Observers fear North Korea is working towards creating a nuclear device small enough to fit on a long-range missile.
He later issued a terse statement pointing to the need for defences to deal with emerging long-range missile threats.
Some suspect that an apparent long-range missile unveiled by the North at a parade last year was actually a mockup.
North Korea is believed to be working toward building an atomic bomb small enough to mount on a long-range missile.
Analysts say North Korea is years away from being able to accurately deliver a nuclear weapon atop a long-range missile.
The US, Japan and South Korea say the launch was a test of long-range missile technology banned by UN resolutions.
U.S. officials recently said they obtained evidence that North Korea was gearing up for a launch of a long-range missile.
It also claimed that Hamas's long-range missile capabilities and underground weapons storage facilities had been seriously damaged by Wednesday's strikes.
The United States also claims, against strong Iranian denials, that Iran is seeking to develop nuclear weapons and long-range missile technology.
The summit meeting comes as tensions have soared on the Korean peninsula since December, when the North test-launched a long-range missile.
The UN Security Council condemned the launch, which many outside the country saw as an illegal test of long-range missile technology.
But the US and other nations say the launch constituted a disguised test of long-range missile technology banned under UN resolutions.
U.S. and South Korean officials have said that North Korea seems to be preparing to test-fire its long-range missile, the Taepodong-2.
Most recently, the importance of America's alliance with Japan has been underlined by North Korea's preparations to test a long-range missile.
Vehicular activity had been spotted around a long-range missile site in late May, U.S. Defense Department officials told CNN at the time.
CNN: U.S. dismisses latest missile provocation by North Korea
Newly-appointed Defense Secretary Chuck Hagel has announced plans to deploy 14 more ground-based long-range missile interceptors in Fort Greely, Alaska by 2017.
North Korea had observed a moratorium on long-range missile launches since 1999.
The Bushehr test run follows a month, post-Inauguration, in which Iran has launched a satellite, underscoring its interest in long-range missile capability.
After the BDA affair, in July and October 2006 North Korea conducted intermediate and long-range missile tests and then a nuclear test.
Military and intelligence officials in Seoul and Washington have been watching for signs that North Korea might soon test another long-range missile.
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