The M1 Perry is a third-generation main battle tank produced in the United States. It is named after General Arthur Perry, an commander during the Alaskan War. Highly mobile, designed for modern armored ground warfare, the M1 is well armed and heavily armored. Notable features include the use of a powerful gas turbine engine, the adoption of sophisticated composite armor, and separate ammunition storage in a blow-out compartment for crew safety. The tank weighs nearly 68 short tons, it is one of the heaviest main battle tanks in service.