U.S. vs N. Korea nuke war likely? Kim's sister warns as B-52 bombers join drills

Kim Jong-un's sister Kim Yo Jong has warned that the U.S. would declare a war with North Korea if it were to intercept or shoot down its missile tests. Here statement came as U.S. sent B-52 bombers to join the military drills with South Korea amid rising nuclear tensions in the Korean Peninsula. North Korea warned the U.S. against 'aggravating the situation' and urged the UN to get U.S. to call off the large-scale combined drill it would be holding with South Korea later this month. Watch this video to find out more.