Raytheon Missiles & Defense (RMD) was one of four business segments of RTX Corporation. Headquartered in Tucson, Arizona, its president was Wes Kremer. The business produced a broad portfolio of advanced technologies, including air and missile defense systems, precision weapons, radars, and command and control systems. Raytheon Intelligence & Space was merged with Raytheon Missiles & Defense in July 2023 to form the Raytheon business segment.