Intercontinental News

North Korea and South Korea have exchanged within recent days, rounds of artillery, larger than bullets from popularly known handheld military firearms.
There have been statements that sacred ground has been brought into the picture.
What does sacred ground refer to, for those that are not fully engrossed in the study of the region.  It could refer to ancient leaders that held much wisdom, equivalent to doctors of today that head their respective fields.  In Korean culture, leaders are venerated and respected.
What the recent historical buildup that lead to exchange of artillery fire?  The answer might include that the historical thread goes back to a point in time with differing opinions as to when it began, was it within the past few months or past few years?, whatever the exact tipping point is, news reports have it now the exchange of artillery is taking place.