2nd Infantry Division
Camp Casey, 15 km from the DMZ
Army Intelligence Detachment Under-Eye
Near Dongducheon, South Korea
0830 hours Sierra
Comment of the Moment: Mungo stiffened and said, “Sir I can neither confirm nor deny that information.”
Aleumdaun stood in the semi-darkness of the tunnel. She was using her NVGs to observe the tunnel toward Seoul. The only lighting toward Seoul came from behind her. It was the bare bulb lighting toward Kaesong. The lights shining behind her lighted the way toward the DMZ rather starkly. Their influence faded with distance.
She had crawled through the small muddy hole at the bottom of the larger hole. Her uniform was soaked in mud. She cleaned it off her holster and cleaned her service pistol.
She looked at the broken junction box. She could see that the weight of the wet earth collapsing against the tunnel wall had been sufficient to tear apart the metal box. She verified the wiring for computers. She verified the wiring for lighting. She saw another wire whose purpose she could not discern.
Looking around at the tunnel, she determined that she would learn the size of the tunnel. She walked across the tunnel in carefully measured steps to determine its width. She marked it on a piece of paper. Then she stood in the exact center of the tunnel and imagined a ninety-degree angle straight up from where she stood.
She measured the distance from the middle to the far wall and wrote it down. She went to the far wall and measured the angle from the base of the wall to the center of the tunnel ceiling. She wrote it down. Taking out her cell phone and using the tangent formula for right triangles, on her scientific calculator which was on her cell phone, she determined the height of the semi-circular tunnel roof. Putting all her numbers together, she determined that the tunnel was 60 feet wide and approximately 20 feet high.
She turned westward and carefully walked toward the DMZ end of the tunnel. She was looking for laser beams and the related reflectors. As she walked, she pushed her NVGs upon her helmet. She carefully shined her flashlight on the walls of the tunnel.
As she walked watching the wiring conduit, she arrived at the next junction box. She noticed a conduit coming out of the bottom of a junction box. She stopped about 20 feet from the box and played her flashlight down the vertical conduit. The conduit ended in a white plastic box with a round aperture facing outward toward the tunnel.
As she gazed at it, she went over in her memory all the laser sensors she could remember seeing. She could not see any beams coming out of it with her NVGs. She looked to the opposite side of the tunnel, but was unable to see any reflectors or wiring that would indicate laser beam reflectors.
She stood momentarily assessing what she was seeing. Then she considered what she was not seeing. She arrived at a conclusion: she believed she was looking at a motion sensor.
Her heart jumped in her chest. She did not know how sensitive the sensor was. She stood in the middle of the tunnel. She was at the edge of most motion sensors detection range. The device might have detected her movement into its range, or it might not have.
She had stood still since she had first seen it. She slowly began to back up. She moved her feet centimeters at a time. First, she moved one foot. Then she moved the other. After three minutes, she felt secure enough to turn from the sensor and walk back to the hole she had entered through.
She walked back to the center of the tunnel. She looked at her compass, adjusted her NVGs, and began walking southwest toward Seoul. She had gone only forty feet when she saw a small tunnel to her right. She marked it on her map. She estimated it to be directly under where the administrative building of Camp Casey might be.
She lifted her NVGs and shined her flashlight at the small tunnel entrance. She noted numerous footprints packing the earth. As she walked, she continued mentally cataloging what she saw.
She continued through the main tunnel for another two hundred yards before checking her watch. She determined that she needed to start back.
As she walked back she turned off her NVGs. She shined her flashlight on the conduit on the tunnel wall. She traced it to the small tunnel she had seen earlier. She saw another junction box on the Seoul side of the little tunnel entrance. She saw the vertical line dropping out of it to the tunnel floor. At the bottom, she saw the same type sensor box she had seen in the DMZ side of the small tunnel opening. Because she knew the power supply to it had been broken, she stopped to examine it. She determined that it was, indeed, a motion sensor, not a high quality one, but just an average one. She marked its location on her map.
Then, she very cautiously entered the smaller tunnel. She had entered ...