US, South Korea begin largest-ever joint air drill
The US and South Korea on Monday kicked off their largest ever joint air exercise, an operation North Korea has labelled an "all-out provocation", days after Pyongyang fired its most powerful intercontinental ballistic missile.The five-day Vigilant Ace drill – involving 230 aircrafts, including F-22 Raptor stealth jet fighters, and tens of thousands of troops – began Monday morning, Seoul's air force said.Pyongyang over the weekend blasted the drill, accusing US President Donal