The CH-47 Chinook is an advanced multi-mission helicopter used by the U.S. Army. The Chinook was first introduced into service in 1962. It contains a fully integrated, digital cockpit management system, and advanced cargo-handling capabilities. Its primary mission is transport of troops, artillery, equipment, and fuel. The Chinook has been used in the Vietnam War, the Falklands War, and the Afghanistan and Iraq Wars. The CH-47 has also been used in disaster relief, firefighting, search and rescue, and heavy construction assist. Three Japanese Chinooks were used to cool the reactors of the Fukushima Nuclear power-plant in 2011. The Chinook currently serves the armed forces of 19 countries worldwide.