North Korea raises specter of nuclear strike over US aircraft carrier’s arrival

North Korea lashed out Friday at the arrival of a U.S. aircraft carrier battle group in South Korea, calling it a provocation and again raising the specter of using nuclear weapons to defend itself.
Emboldened by its advancing nuclear arsenal, North Korea has increasingly issued threats to use such weapons preemptively. But the North is still outgunned by U.S. and South Korean forces, and experts say it is unlikely to use its nukes first, though it will continue to upgrade those arms without returning to diplomacy for the time being.
The North’s latest nuclear threat came a day after the USS Ronald Reagan and its battle group arrived at South Korea’s southeastern port of Busan, following U.S.-South Korean-Japanese naval exercise in international waters earlier this week.