via Military Update German Gepard AA Gun: Why They Are Such a Threat to Russia Gepard self-propelled anti-aircraft gun is a heavily armored, autonomous, and mobile air defense system based on the chassis of the Bundeswehr’s Leopard 1 main battle tank. The Gepard self-propelled anti-aircraft gun was manufactured by Krauss-Maffei Wegmann (KMW), based in Munich, Germany, and was shipped to the armed forces of Belgium, Germany, and the Netherlands.