South Korea’s President Moon Jae-in on Monday urged North Korea to return to dialogue and refrain from raising tension, after threats trumpeted by state media in Pyongyang to cut ties and take military action.The recent flaring of animosity between the neighbours has stoked fear of a military provocation by the North, and posed another setback amid stalled talks to rein in its nuclear and missile programmes.Besides the threat to sever ties, state media over the past few days have aired the…