![](https://www.historynet.com/wp-content/uploads/2022/04/South-Vietnamese-troops-turn-the-twin-40-mm-guns-of-an-M42A1-Duster-M41-tank-chassis-July-22-1972-1.jpg)
South Vietnamese troops turn the twin 40 mm guns of an M42A1 Duster, an anti-aircraft vehicle on an M41 tank chassis, toward North Vietnamese positions along Route 1 on July 22, 1972. (AP/ Lo Hung)
AP/ Lo Hung
South Vietnamese troops turn the twin 40 mm guns of an M42A1 Duster, an anti-aircraft vehicle on an M41 tank chassis, toward North Vietnamese positions along Route 1 on July 22, 1972. (AP/ Lo Hung)
AP/ Lo Hung