Lockheed Martin Corporation is a global security and aerospace company. The Company is engaged in the research, design, integration and sustainment of advanced technology systems, products and services. It operates in five segments: Aeronautics; Information Systems & Global Solutions (IS&GS); Missiles and Fire Control (MFC); Mission Systems and Training (MST), and Space Systems. Its Aeronautics segment is engaged in the development, manufacture, support and upgrade of advanced military aircraft. The IS&GS provides network-enabled situational awareness and integrates global systems to help its customers gather, analyze and securely distribute critical data. Its MFC segment provides air and missile defense systems, and logistics services. Its MST segment provides manufacture, service and support for various military and civil helicopters. Its Space Systems segment is engaged in the design, engineering and production of satellites.