Cobham plc is engaged in the development, delivery and support of advanced aerospace and defense systems in the air, on land and at sea. It has four divisions. Avionics & Surveillance provides avionics products, law enforcement and national security solutions, and satellite communication equipment. Defence Systems provides technology for network centric and intelligence operations. Mission Systems provides safety and survival systems for extreme environments and mission systems for fast jets, transport aircraft and rotor craft. Aviation Services delivers outsourced aviation services for military and civil customers through military training, special mission flight operations and aircraft engineering. On June 3, 2008, it acquired SPARTA Inc. On September 29, 2008, it acquired M/A-COM RF components and microwave subsystems business. On October 1, 2008, it acquired Global Microwave Systems Inc. In March 2009, it sold M/A-COM Technology Solutions. In May 2009, it purchased Argotek, Inc.