The Allied Defense Group, Inc. engages in the ownership and management of a portfolio of defense and security businesses worldwide. The company operates in four segments: Ordnance and Manufacturing (OM), Electronic Security (ES), Environmental Safety and Security (ESS), and Software, Training, and Simulation (STS). The OM segment designs, develops, manufactures, and sells ammunition and light weapons for military use. This segment also offers various ammunition and grenades in the medium caliber, artillery, anti-tank, and anti-personnel categories. The ES segment manufactures access control, intrusion protection, fire detection, and video systems; and installs security systems and networked video surveillance systems. It also develops microwave surveillance systems used in law enforcement, port security, border security, airport security, high-end commercial security, and citywide surveillance applications and defense applications. The segment’s other products include cameras, command/control systems, video concealments, microwave link solutions, and other sensors. In addition, the segment offers fixed observation/transmit surveillance installations, as well as mobile command centers and airborne camera/tracking/transmit packages. The ESS segment designs, manufactures, distributes, and services weather and environmental satellite ground reception systems, as well as antenna products for satellite communications. The STS designs, manufactures, and sells battlefield effects simulators, multiair defense simulator system, rocket propelled grenade system, and the E-Pryo simulator devices. Allied Defense Group was established in 1961 as Allied Research Associates, Inc. and changed its name to Allied Research Corporation in 1988. Further, it changed its name to The Allied Defense Group, Inc. in 2003. The company is headquartered in Vienna, Virginia.