A major boost to German armour came with the annexation of Czechoslovakia in 1938, giving Germany access to the entire Czech arms industry. The Czechs had two light tank designs later used by the Germans, the Škoda LT-35 and the Českomoravská Kolben-Daněk (ČKD) TNHP. The Škoda was a 10-ton machine with a 37 mm main gun and excellent cross-country capabilities; the ČKD was 8.5 tons and also fitted with a 37 mm gun—due to extensive tests it was an extremely reliable machine with a top quality chassis. Both were taken into the German panzer forces, as the Panzer 35(t) and the Panzer 38(t), and further production was ordered. ČKD was renamed "Boehmisch-Maehrische Maschinenfabrik" AG (BMM) in 1940 and continued production until 1942, providing the "Wehrmacht" with 1,168 PzKpfw 38(t) tanks. In 1940, Czech tanks made up around a quarter of the entire German panzer force.