The Tanque Argentino Mediano ("Argentine Medium Tank"), or TAM, is the main battle tank in service with the Argentine Army. Lacking the experience and resources to design a tank, the Argentine Ministry of Defense contracted German company Thyssen-Henschel. The vehicle was developed by a German and Argentine team of engineers, and was based on the chassis of the German Marder infantry fighting vehicle. The TAM has never seen combat, although 17 armored personnel carriers based on the TAM chassis were deployed to Croatia for the United Nations UNPROFOR peacekeeping mission.