North Korea is believed to have hundreds of artillery-concealing caves just north of the DMZ.
Here s What You Need to Remember: Once located, there are three ways of dealing with the sites.
How would the United States and South Korea deal with these underground facilities in wartime? First, it would have to locate the facilities. These facilities are hard to spot via satellite, and gleaning information from defectors is perhaps the best way to learn about them in peacetime. Once war commences, signal intelligence will pick up radio transmissions from previously unknown underground locations, enemy troops will from concealed positions or tunnel entrances, and artillery counter-battery radars will fix the positions of HARTS. It is likely that, despite advance preparations, many of these positions will be a surprise to Washington and Seoul.