SEOUL — South Korean troops staged a live-fire artillery exercise Feb. 20 near the disputed Yellow Sea border despite threats from North Korea's new leadership of "merciless" retaliation.
The defense ministry said the Marine Corps, which guards "front line" islands near the flashpoint border, began the exercise at about 10 a.m. and ended it before noon.
About 1,400 civilians living on the islands were evacuated to bomb shelters during the drill, a local official said.
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