Elbit Systems develops, manufactures and integrates advanced, high-performance defense electronic and electro-optic systems for customers throughout the world. Our major activities include command, control, communication, computer and intelligence (C4I) systems and intelligence surveillance and reconnaissance (ISR) systems for defense and homeland security applications. We also perform upgrade programs for airborne, ground and naval defense platforms, often as a prime contractor, and supply advanced turnkey Unmanned Airborne Vehicle (UAV) systems.