Approximately 33% of all land in Ginowan City is occupied by the U.S. military. The base is a massive impediment to municipal development as roads, power lines, telephone lines, water mains, and sewage all have to be routed around the base. 87,500 citizens of Ginowan live in densely packed residential areas surrounding the base. Numerous preschools, elementary schools, and secondary schools are located in close proximity to the base. In addition, approximately 5000 students commute daily to Okinawa International University, where the crash occurred. What better place to conduct U.S. Marine helicopter training flights!