Sgt. 1st Class Adam Cason teaches soldiers how to recognize mine fields. U.S. Army Sgt. 1st Class Adam Cason teaches soldiers how to recognize mine fields at Bagram Air Field, Afghanistan, on March 25, 2012. Experts estimate that there are upwards of 10 million mines and other unexploded ordnance buried in the ground in Afghanistan. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 611800-S-OZF20-258.jpg Photo Gallery