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North Korea positions its artillery inside DMZ

orth Korea has set up its artillery inside the Demilitarized Zone (DMZ) in its efforts to stop South Korea’s broadcasts against the North.

The North reportedly brought 76.2-millimeter artillery guns into the DMZ and positioned more military units behind the DMZ on Saturday, according to Yonhap News Agency.

https://www.koreatimes.co.kr/www/news/nation/2015/08/485_185362.html

"You only move Arty out of prepared revetments when you have to shoot further."

Back when, in 10th Marines, there was an acronym. "CSMO" Stood for "Colonel Says Move Out." It was understood that the Other Guy's countermortar radar was more than adequate to have targeted return fire on the way before your shells had landed. I'd be surprized if the DPRK and the ROK doesn't have every prepared arty position within range near the DMZ already registered. They've had 60 years to do it.

Back in the '70s, I had a 96 R&R in Taipei. It was my habit to explore on foot when in a strange town. If you took a stroll, you would start to see that every large building on a street corner seemed to have stepped gun slits, knee high, to cover all four corners. The rivers in town ALWAYS had 15 foot walls to create channels, and anti-tank ditches. Any bridges had pill boxes covering the approaches on both ends. The President's Palace sat in the middle of a 1/2 mile square concrete plaza, with absolutely zero cover any higher than a curb.

Considering that SK has had 60 years, I'd be willing to bet that Seoul has the same civic improvements. There aren't enough artillary shells in the world to prosecute all the tactical targets, even if there wasn't any return fire.

It will be the same off shore. Look up SOSUS, SOFAR, SURTASS. A MAD system on a sub hunter, these days, would be about as useful as carrier pigeons. Yeah, handy, but why bother? You plant them on the bottom, and they spike when anything passes over them. I'd wager that every square inch of sea bottom out to the 100 fathom line, off the Korean coast, is a net of hydrophones, magnetic detecors, pressure sensors. Just because the media doesn't know where all the DPRK subs are... I wonder if the DPRK Navy knows they are already Martyrs for Dear Leader?

This is all Popular Science articles. Nothing tippy top secret, here.