Known as K2, a toxic military base in Karshi-Khanabad, Uzbekistan has seen an increasing number of veterans reporting cancer. A black goo that seeped through the soil at the former Soviet and Uzbek base has been reported to contain radioactive chemicals and uranium. Underground fuel, chemical weapons, and other radioactive chemicals had seeped up through the soil and affected those who served there. Despite reports that the Pentagon knew about this black goo, 7,000 U.S. troops were deployed to the base between 2001 and 2005. A veteran K2 Facebook site has recently seen a surge of veterans reporting their cancer after serving at the base. If these self-tracked cancer case numbers are accurate, the number is five times higher than what the U.S. government and Army has reported.
2015 was the last government count done by the Army; 61 service members had been diagnosed with cancer. A number of U.S. Army Special Operations Command forces at K2 had developed various types of cancer, which prompted them to conduct a study. Despite that study and review, however, personnel were not identified due to the classified nature of their missions. According to the Army, those particular illnesses were likely not included in the 2015 count.