The Douglas A-20 Havoc served Allied forces through most of World War 2, fighting for British, American and Soviet forces. The type saw extensive use, proving itself a war-winner capable of withstanding a great deal of punishment but living up to its namesake in turn thanks to its speed and inherent firepower. Her crews put the aircraft through its paces with production topping over 7,000 units and several major production variants. Built as a light bomber but operated more or less as a heavy fighter, the Havoc proved a successful addition to the Douglas company line and the Allied war effort as a whole before being eventually replaced by the more capable Douglas A-26 Invader in the attack/light bombing role and Northrop P-61 Black Widow in the night-fighter role.