Tens of thousands of South Korean and US troops kicked off a large - scale military drill on Monday. The maneuvers are simulating an all-out attack by North Korea, which has condemned the joint drill as a “declaration of war,” AFP said, RT reported. The annual Ulchi Freedom exercise, which will run through August 28, involves 50,000 Korean and 30,000 US soldiers, although it is largely computer-simulated. Pyongyang views Ulchi Freedom, along with other South Korea-US drills, as provocative and has threatened the “strongest military counter-action” should this exercise go ahead.