North Korea Claims Test of Hydrogen Bomb for Long-Range Missile a Success

North Korea Claims Test of Hydrogen Bomb for Long-Range Missile a Success, by Jonathon Cheng.

North Korea said it conducted a sixth and significantly larger nuclear test Sunday, stepping up pressure on President Donald Trump in what is shaping up to be his biggest foreign policy crisis.

In a televised statement, North Korea described the underground explosion, which triggered a large earthquake, as a “perfect success in the test of a hydrogen bomb for an ICBM.” Pyongyang said “the creditability of the operation of the nuclear warhead is fully guaranteed.”

The test came just hours after leader Kim Jong Un showed off what he described as a hydrogen bomb capable of being mounted on an intercontinental ballistic missile. …

The latest nuclear test was estimated to have a yield of as high as 100 kilotons—about 10 times the power of the North’s previous test and roughly five times that of the atomic bomb that the U.S. dropped on Nagasaki, Japan, in 1945. …

South Korea’s national security adviser, Chung Eui-yong, said after a 90-minute emergency meeting of the National Security Council that Seoul would consider the possible deployment of what he described as the “most powerful strategic assets that the U.S. possesses,” without elaborating, according to a statement from the presidential Blue House.

The phrase “strategic assets” typically refers to stealth bombers, aircraft carriers or possibly nuclear weapons. The U.S. withdrew the last of its nuclear weapons from South Korea in 1991. …

In North Korea’s statement before the nuclear test, Mr. Kim also threatened to detonate a nuclear device at a high altitude above the U.S. The detonation could emit a brief but powerful electromagnetic signal capable of disrupting swaths of the U.S. electrical grid, experts say. …

Japanese Prime Minister Shinzo Abe said his country would work together with the U.S., South Korea, China and Russia on a response to the nuclear test. “We can never accept it. We will need to make a strong protest,” Mr. Abe said.

Timer to evacuate Seoul?