The Bofors gun saw combat for the first time in Spanish Civil War, where it could easily pierce the armor of contemporary light tanks.

The Polish guns were actively used during the German and Soviet invasion of Poland in 1939.
Wołyńska Cavalry Brigade equipped with the Bofors 37 mm antitank gun beat the German Panzer Divisions in one of the first battles of the invasion; the Battle of Mokra.
At that time, the armored forces of the Wehrmacht consisted mainly of light Panzer I and Panzer II tanks, which were vulnerable to the Bofors gun.
Early models of the Panzer III and Panzer IV could also be penetrated at ranges up to 500 m. After Poland was occupied, most of the guns fell into the hands of the German and Soviet armies.
The weapon was proven obsolete by 1941 during Operation Barbarossa.

Even though only one Bofors AT-gun was in action in the Invasion of Denmark, it damaged two tanks, and shot the tracks off another tank, before its crew were either wounded or killed by a German tank destroyer which drove over the gun.
The gun is now at the Tøjhusmuseet in Copenhagen.

During the Winter War, the Finnish guns were successfully used against Soviet tanks such as T-26, T-28 and BT.
However, in the Continuation War the gun was found to be ineffective against the T-34 and KV and was relegated to an infantry support role.

The gun was used to equip the British forces in North Africa, where it made up for the lack of the QF 2-pounder anti-tank guns after the Fall of France.
It was often carried portee on the back of a vehicle.

Bofors guns were also employed in World War II by Germany, the Netherlands, Romania, Yugoslavia and USSR, but there are no detailed reports of their use.
The Bofors gun saw combat for the first time in Spanish Civil War, where it could easily pierce the armor of contemporary light tanks.
The Polish guns were actively used during the German and Soviet invasion of Poland in 1939. Wołyńska Cavalry Brigade equipped with the Bofors 37 mm antitank gun beat the German Panzer Divisions in one of the first battles of the invasion; the Battle of Mokra. At that time, the armored forces of the Wehrmacht consisted mainly of light Panzer I and Panzer II tanks, which were vulnerable to the Bofors gun. Early models of the Panzer III and Panzer IV could also be penetrated at ranges up to 500 m. After Poland was occupied, most of the guns fell into the hands of the German and Soviet armies. The weapon was proven obsolete by 1941 during Operation Barbarossa.
Even though only one Bofors AT-gun was in action in the Invasion of Denmark, it damaged two tanks, and shot the tracks off another tank, before its crew were either wounded or killed by a German tank destroyer which drove over the gun. The gun is now at the Tøjhusmuseet in Copenhagen.
During the Winter War, the Finnish guns were successfully used against Soviet tanks such as T-26, T-28 and BT. However, in the Continuation War the gun was found to be ineffective against the T-34 and KV and was relegated to an infantry support role.
The gun was used to equip the British forces in North Africa, where it made up for the lack of the QF 2-pounder anti-tank guns after the Fall of France. It was often carried portee on the back of a vehicle.
Bofors guns were also employed in World War II by Germany, the Netherlands, Romania, Yugoslavia and USSR, but there are no detailed reports of their use.
Bofors 37 mm anti-tank gun