BAE Systems Incorporated is engaged in the development, delivery and support of advanced defense, security and aerospace systems in air, on land and at sea. It employs a work force of more than 100,000 people and maintains operations in Australia, Saudi Arabia, South Africa, Sweden, the United States and the United Kingdom. The company specializes in the design and manufacture of electronic systems and subsystems for the military and commercial sectors. It also provides service support of armored combat vehicles, artillery systems and intelligent munitions. BAE Systems Incorporated offers systems engineering and integration, project management and technical support services. Its product line includes fiber optic sensors, night vision imaging systems, optical assemblies, parachutes and weapon launchers. The company operates Regional Aircraft, which is a division that features aircraft and provides support services to various regional airlines. It is a subsidiary of BAE Systems.