North Korea and Iran have giant underground facilties the place they’ve their nuclear weapons and different operations. DARPA is taking a look at breakthroughs for coping with tunnels and underground cities. Underground is the brand new frontier for army and safety motion. Although tunnels have been already extensively used within the Vietnam War within the 1960s and 1970s. Tunnels are an increasing number of of an issue in Mexico and Middle East. Vietnam now offers vacationers visits to the tunnel complexes used within the Vietnam conflict. North Korea had and doubtless has invasion tunnels into South Korea Advances in robotics, autonomy, and even organic programs

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