Tensions have flared up on the Korean Peninsula as North Korea issued its latest nuclear threat two days after Seoul said Pyongyang was making final preparations to conduct its fourth nuclear test. North Korea has “clarified its resolute stand that it would take countermeasures including nuclear test to protect the sovereignty and dignity of the” country, the official Korean Central News Agency... 

Every military resource the US has, including nuclear arms, will be available to its ally South Korea in the confrontation with its northern neighbor, US Deputy Defense Secretary Ashton Carter pledged in Seoul. “We remain steadfast to our commitment to extended deterrence offered by the US nuclear umbrella,” Carter said after talks with South Korean Defense Minister Kim Kwan-Jin. “We’ll...