One of the most popular and recognisable anti-aircraft guns of WWII, the Bofors was used by many Allied and Axis forces. Often firing over open sights at ground targets as well as it's intended role as an anti-craft gun, the Bofors was the most common anti-aircraft gun of the war. The Bofors saw action in every theatre, and provided a reliable anti-aircraft mount that is still in use to this day!
Wherever possible, the Australians deployed their Bofors guns to defend against marauding Japanese aircraft, especially around Allied airfields.