Recently, researchers in the Russian National Archives have come across plans for an secret operation known as Kaschei Bessmertniy that was intended to create a new type of soldier for close combat in war. The plan called for bears to be shaven, surgically modified, and clothed so that they could pass for extremely large humans at night. The bears would be specifically trained to attack humans not wearing a particular scent. The idea was that in case of a war with China the bears would be released along the enemy lines at night to rampage and kill large numbers of soldiers with their claws and teeth. The records were incomplete and it is unclear just how far the project got. There are some photos of shaven bears, but no evidence of any surgical modifications.