On August 4, alleged North Korean mines seriously wounded two South Korean border guards. And on August 20, the Koreas exchanged artillery fire along their de-militarised zone, although no one was reported injured.
Today, North Korea has ordered its front-line troops onto a war footing in a drastic raise in tensions.
The Korean demilitarized zone (DMZ) is the haunted powder-keg of land left over from the Korean War that sits at the 38th parallel — 160-miles long and 2.5 miles wide.
Monsoon Diaries blogger Calvin Sun shares his photos from the DMZ with us.
Robert Johnson and Jeremy Bender contributed to this post.
Here's a view of the actual demilitarized zone, which is basically farmland where few villagers have the right to live.
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