China sunbs North Korea ,Kim Jong Un Directs assault drill

North Korean leader Kim Jong-Un warned the South would "regret bitterly" any incursion of their disputed sea border as he directed a large-scale mock assault on an island, state media said today.The joint landing drill involving the army, navy and air force followed a series of missile tests in the past week --seen by some a display of pique over Chinese President Xi Jinping's two-day state visit to Seoul.This is a remarkable development when one considers the close ideological and historic ties between China and North Korea,China under Mao Zedong saved Kim Jong-un’s grandfather from certain defeat at the hands of UN forces led by General MacArthur during the 1950-1953 Korean War