Follow a patrol into a village for training in tunnel detection and destruction. An explanation on the tactical use of tunnels, and descriptions of several tunnel complex types. See a demonstration of the proper technique for exploring a discovered tunnel. Hear the responsibilities of the reconisence team. Learn the factors governing tunnel denial or destruction. Learn the methods of denial, including immediate denial, partial destruction, and complete destruction. See CS powder deployment, and CS Grenade use, as well as the M-106 chemical dispenser. Watch as fragmentation or concussion grenade use in collapsing the entrance to a tunnel. See C4 in the M37 demolition charge assembly kit. Learn the procedure for creating this charge. See the steps required for the total destruction of a tunnel, by specialists called in. See the components of the xm242 liquid explosives kit. One kit can destroy a 500' long, with a 10-foot overburden. The kit contains, portable gas powered compressor, two 55 gal drums of Nitromethane, and enough hoses to attach to the drums and compressor, a pressure relief valve, a valve flow control, and a monitor box for the level of Nitromethane left, and an arrestor for blocking the backflow of the explosive and a drag pack containing 500 ft, of lay flat plastic tubing.