North and South Korea exchanged warning shots along a disputed western maritime boundary in the Yellow Sea early Monday, with both sides' armed forces accusing each other of border violations, adding further tension to relations between the two countries.South Korea's military said it fired a total of 20 warning shots after spotting a North Korean commercial vessel that had crossed the Northern Limit Line, a border drawn by U.S.-led U.N. forces after the Korean War, at around 3:42 a.m.North Korea's military, meanwhile, released a statement accusing a South Korean destroyer of intruding into…READ FULL ARTICLE