Anti-Tank Guns were a particular type of weapon which existed very briefly in the Second World War and in the years afterward, eventually giving way to Recoilless Guns and anti-tank missiles.
Anti-Tank Guns were issued to infantry battalions, generally towed by Universal Carriers (the T-16s was the preferred vehicle type). The Royal Canadian Artillery also fielded entire anti-tank regiments, which were equipped with either towed, or self-propelled, anti-tank guns.
Tanks were continually improved in terms of both firepower and armour protection during the war, and anti-tank weapons were also developed during the war to match. Canadian anti-tank units began the war with the 2-pounder Anti-Tank Gun, with the 6-pounder Anti-Tank Gun replacing it in infantry battalions. A 17-pounder Anti-Tank Gun was also developed, equipping towed anti-tank regiments.
During the war Self-Propelled Guns also became common, and the 17-pounder was used on self-propelled chassis such as the M10 Achilles, which was used in the Second World War, and after. Lord Strathcona's Horse (Royal Canadians) was originally equipped with the M10 in Korea, but were re-equipped with the Sherman Tank before going into action.
In the post war era, the use of recoilless guns became common, such as the 106mm Recoilless Rifle, which could be fired from a ground mount as well as a vehicle such as a Jeep. Other Self-Propelled weapons systems included TOW Under Armour and ADATS.