 The post includes , with numerous ranges and training areas for the 28th Infantry Division, the 213th Area Support Group, and the Eastern Army National Guard Aviation Training Site (EAATS), Army Aviation Support Facility (AASF) at Muir Army Airfield.The installation is also home to the Northeast Counterdrug Training Center (NCTC).The history of Fort Indiantown Gap dates back to 1755, when resentment of the Susquehannock Indians toward white settlers forced the colonial government of Pennsylvania to establish a fortification in the area.