PYONGYANG, North Korea (AP) — After weeks of fiery rhetoric, military posturing and threats that it's willing to st...

SEOUL, South Korea (AP) — U.S. Secretary of State John Kerry delivered a stark warning to North Korea on Friday not to ...

SEOUL, South Korea (AP) — In a show of force following weeks of North Korean bluster, the U.S. on Thursday took the unp...

By GLORIA RIVIERA and AKIKO FUJITA (ABC NEWS) -- North Korea says it has successfully tested a miniaturized nuclear device Tu...

By GLORIA RIVIERA, JOOHEE CHO and AKIKO FUJITA/ABC NEWSUnited States officials confirm that North Korea appears to have carri...