What what base does the squad responsible for the NTTR work?
Nevada Test and Training Range The Nevada Test and Training Range (NTTR) is one of two military training areas used by the United States Air Force Warfare Center at Nellis Air Force Base in Nevada. The NTTR land area includes a "simulated Integrated Air Defense System", several individual ranges with 1200 targets, and 4 remote communication sites. The current NTTR area and the range's former areas have been used for aerial gunnery and bombing, for nuclear tests, as a proving ground and flight test area, for aircraft control and warning, and for Blue Flag, Green Flag, and Red Flag exercises.
Northern Army (Japan) The Northern Army (北部方面隊 , Hokubu Hōmentai ) is one of five active Armies of the Japan Ground Self-Defense Force (JGSDF). It is headquartered at Camp Sapporo in Sapporo, Hokkaidō and its responsibility is the defense of the island of Hokkaidō. It is the largest Army of the JGSDF as on Hokkaidō population and geographic constraints are less limiting than elsewhere in Japan. Most of JGSDF's modern Type 90 tank squadrons are located within the Northern Army's structure.