Gijeong-dong - propaganda village, site of major music war
en.wikipedia.org
"Eventually, as its value in inducing defections proved minimal, the content was switched to simply blaring condemnatory anti-Western propaganda speeches, Communist agitprop operas, Anti-Semitic and Anti-Christian speeches[citation needed], and patriotic marching music at high volume for up to 20 hours a day. This was tolerated until 2004, when the ROK government responded by erecting their own set of loudspeakers at Taeseong-dong and retaliating with deafening K-pop music. Both were eventually silenced after the combined din at the Joint Security Area became intolerable for both sides."