Here’s how the Marine Corps is dealing with the looming underground combat threat
By: Todd South  
“Sir, what do you want us to do about the tunnel?†a Marine squad leader asked during a rotation through the Range 220 urban complex at the Marine Corps Air Ground Combat Center at Twentynine Palms, California.
“Seal it, post security, and we’ll deal with it later,†the rifle platoon commander replied.
Earlier this year, that platoon commander, Marine Corps 1st Lt. Walker Mills, wrote a critique on the Modern War Institute website on the lack of underground training he saw while serving as a rifle platoon commander with 2nd Battalion, 1st Marine Regiment.
“Nowhere in my training had tunnels come up or been addressed as a tactical problem,†he wrote.
https://www.marinecorpstimes.com/news/your-marine-corps/2019/06/03/heres-how-the-marine-corps-is-dealing-with-the-looming-underground-combat-threat/
