TheofficialmediaoftheDemocraticPeople'sRepublicofKorea(DPRK)onTuesdaycalledonSouthKoreatore-investigatethesinkingofSouthKoreancorvetteCheonaninMarch2010,calling
The South Korean military on Wednesday conducted naval training exercises to mark the fifth anniversary of the Cheonan sinking in March 2010.