Lockheed Martin Corporation is a global security and aerospace company, which is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. The Company operates in five business segments based on the nature of the products and services offered, such as Aeronautics, Information Systems & Global Solutions, Missiles and Fire Control, Mission Systems and Training and Space Systems. The Company provides a range of management, engineering, technical, scientific, logistic, and information services. The Company`s main areas of focus are in defense, space, intelligence, homeland security, and information technology, including cyber security. The Company serves both domestic and international customers with products and services that have defense, civil, and commercial applications, with its principal customers being agencies of the United States Government.