
HUNTSVILLE, Ala.—Hypersonic glide vehicles (HGV) under development by potential adversaries will require the United States to devise new ways to detect and defend against such advanced threats, the head of U.S. Strategic Command (STRATCOM) said Aug. 16.Research and development on HGV weapons is “challenging our planning calculus” because it can “complicate our sensing and our defensive approaches,” Adm. Cecil Haney said at the annual Space and Missile Defense Symposium here. “The ability to find, fix, track and hold at risk…