A British Crusader tank in World War II.

The A15 Crusader was one of the primary British cruiser tanks during the early part of the Second World War. Over 5,000 tanks were manufactured and they made important contributions to the British victories during the North African Campaign. The Crusader tank would not see active service beyond Africa, but the chassis of the tank was modified to create anti-aircraft, fire support, observation, communication, bulldozer and recovery vehicle variants.

The Crusader was armed with a QF 6-pdr (57mm/50-caliber) cannon.

In AAO, the Crusader was armed with the QF 6-pdr from the initial production version onwards rather than the QF 2-pdr.