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Lockheed Martin is a security and aerospace company engaged in the research, design, development, manufacture, integration, and sustainment of technology systems, products, and services. It also provides a range of management, engineering, technical, scientific, logistics, system integration, and cybersecurity services. The company operates in four business segments: Aeronautics, Missiles and Fire Control (MFC), Rotary and Mission Systems (RMS), and Space. Lockheed Martin primarily serves government agencies in the areas of defense, space, intelligence, homeland security, and information technology.