Kratos Defense & Security Solutions, Inc. provides mission critical products, solutions, and services primarily for the United States Government. The company operates through three segments, Kratos Government Solutions (KGS), Unmanned Systems, and Public Safety & Security (PSS). The Kratos Government Solutions segment offers command, control, communications, computing, combat systems, intelligence, surveillance, and reconnaissance (C5ISR) products; solutions; and services. This segment provides electronic warfare/attack and intelligence, reconnaissance, and surveillance; satellite command and control, communications support, signal monitoring, interference detection, and geolocation; ballistic missile defense test and evaluation; cyber and IT; learning, performance, and training solutions; and weapon systems services. It also manufactures specialized modular systems, tactical combat products, shelters, and enclosures; command and control modular systems; weapons systems; and warfighter related systems. The Unmanned Systems segment offers composite unmanned aerial target drone systems; and supplies UAS platforms with sensors, avionics, and electronic components. This segment also manufactures and provides avionics systems and ground flight control systems, as well as command, control, and communications systems for various unmanned ground and seaborne, platforms and systems. The Public Safety and Security segment offers integrated security solutions for homeland security, public safety, and critical infrastructure; and strategic assets for government, industrial, and commercial customers. This segment provides its solutions in various areas, such as the command and control centers; and access control, building automation and control, communications, digital and closed circuit television security and surveillance, fire and life safety, maintenance, services, and product support services. The company was founded in 1994 and is headquartered in San Diego, California.