US and Asia allies vow steep price for N. Korea nuclear test

South Korean activists denounce Pyongyang's nuclear test during a rally in Seoul, on January 7, 2016The United States and its two main military allies in Asia, South Korea and Japan, pledged a combined push Thursday to secure a comprehensive, hard-hitting international response to North Korea’s latest nuclear test. The leaders of the three countries, who have long sought to project a united front against the North Korean nuclear threat, spoke by phone a day after Pyongyang’s shock announcement that it had tested its first hydrogen bomb. While the announcement prompted widespread condemnation and calls for new stiff sanctions against the secretive state, it was also greeted with some scepticism, with experts suggesting the apparent yield was far too low for a thermonuclear device.

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