Two short-range missiles fired into the sea off the regime 's east coast . South Korea said it was 'armed protest ' against its 2013 exercises . Drills aided by the U.S. and military chiefs insist they are just defensive . But they raise tensions and in annual the North vowed nuclear retaliation .
Two short-range missiles fired into the sea off the regime 's east coast . South Korea said it was 'armed protest ' against its annual exercises . Drills aided by the U.S. and military chiefs insist they are just defensive . But they raise tensions and in 2013 the North vowed nuclear retaliation .