North Korea has dealt furiously with propaganda affronts before

From military to activists, South Korea has history of provoking Kim Jong Un

20200619 Kim balloons collage

The North Korean regime is especially sensitive to propaganda leaflets, sent via balloons, that criticize leader Kim Jong Un. (Source photos by AP/Reuters)

HIROSHI MINEGISHI, Nikkei senior staff writer

TOKYO -- When one talks of tensions on the Korean Peninsula, propaganda leaflets and loudspeakers have their own history with links to the present. 

In the past, it was the South Korean military that jeopardized relations with North Korea by using them.

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