The Pak 36 is a 3.7 cm / 37mm caliber German anti-tank gun used during the Second World War. It was the main anti-tank weapon of Wehrmacht Panzerjäger units until 1942. Developed by Rheinmetall in 1933, it was first issued to the German Army in 1936, with 9,120 being available by the beginning of the war in September 1939 and a further 5,339 produced during the war. As the predominant anti-tank gun design in the world during the late 1930s, demand was high for the Pak 36, with another 6,000 examples produced for export and the design being copied by the Soviet Union as the 45 mm anti-tank gun M1932 (19-K) and by other nations such as Japan.
A Pak 36 in Northern France, 1944
German soldiers with the 3.7 cm Pak 36 anti-tank gun in Belgium, May 1940.
Five German soldiers of the 89th Infantry Regiment with a 3.7 cm Pak 36 anti-tank gun on a Kharkov street during the First Battle of Kharkov in October 1941. A sandbag barricade is visible in the background.
Stahlhelm-wearing Chinese soldiers deploying a Pak 36.
The 7.5 cm Pak 40 was a German 75 millimetre anti-tank gun of the Second World War.
A Pak 40 75 mm anti-tank gun, displayed in the Museum of Military History, Vienna.
A Finnish army Pak 40 in firing position during the Continuation War
7,5 cm Pak 40 in Albania in 1943
German Panzerjäger use a Pak 40 against Yugoslav partisans in Bosnia on 12 January 1944.