The Leopard 1 main battle tank was developed by Germany in the 1960s. Canada purchased 127 Leopard 1 A3 tanks in 1979, the bulk of which were stationed in West Germany until Canada withdrew from Europe. The tank has a fully stabilized 105mm gun capable of firing while the vehicle is moving. The Leopard also has a 7.62mm C-6 MG mounted co-axially, a C-6 on the turret roof for anti-aircraft defence, and smoke dischargers. The tank has a crew of four (crew commander, loader, gunner, driver) and is capable of submerged fording, with preparation.