Lockheed Martin Corporation engages in the research, design, development, manufacture, integration, operation, and sustainment of advanced technology systems and products in the United States and internationally. The company also provides management, engineering, technical, scientific, logistic, and information services. It operates in four segments: Aeronautics, Electronic Systems, Information Systems & Global Services (IS&GS), and Space Systems. The Aeronautics segment provides military aircraft, including combat and air mobility aircraft, unmanned air vehicles, and related technologies. Its products and programs include the F-35 Lightning II Joint Strike Fighter-multi-role coalition fighter, the F-22 Raptor-air dominance attack and multi-mission stealth fighter, the F-16 Fighting Falcon-multi-role fighter, the C-130J Super Hercules tactical transport aircraft, and the C-5M Super Galaxy strategic airlift aircraft. This segment also supports P-3 Orion maritime patrol aircraft and U-2 Dragon Lady high-altitude reconnaissance aircraft. The Electronic Systems segment offers air and missile defense; tactical missiles; weapon fire control systems; surface ship and submarine combat systems; anti-submarine and undersea warfare systems; land, sea-based, and airborne radars; surveillance and reconnaissance systems; simulation and training systems; and integrated logistics and sustainment services. The IS&GS segment provides federal services; information technology solutions; software and systems engineering support services; logistics, mission operations support, peacekeeping, and nation-building services for the various U.S. defense and civil government agencies. The Space Systems segment produces government and commercial satellites; strategic and defensive missile systems, including missile defense technologies and systems, and fleet ballistic missiles; and space transportation systems.