| Building Overview | Game Strategies | History |
The Air Defense Gun is an early stationary AA weapon and the third Lookout building, automatically upgraded from Observation Post at the 
Industrial Age.
Air Defense Guns compensate a relatively shorter line of sight for their increased capability of shooting down Biplanes. However they still lack good armor and a well armed force can bring down these buildings without much resistance. They're not at much effective towards Aircraft from future Ages so ground-attack aircraft will demolish these weapons with bitter ease. To counter this, Air Defense Guns should be built in groups and accompanied by ground units. It also retains its ability to detect any invisible units within its line of sight.
Like other anti-aircraft units and buildings, Air Defense Guns can be jammed by scouts.
The Air Defense Gun's line of sight increases with each level of 
Science technology researched by +3 tiles.
Air Defense Guns are automatically upgraded to Radar Air Defenses in the 
Modern Age.
Nation powers[]
- The British Power of Empire: Air Defense Guns are 25% cheaper and built 33% faster.
- The Indian Power of Majesty: Air Defense Guns rise in cost at half their normal rate.
- The Lakota Power of the Plains: Can build Air Defense Guns anywhere except in enemy territory.
- The Maya Power of Architecture: Air Defense Guns have +25% hit points and are built 20% faster.
Trivia[]
- The Air Defense Gun is based on the Bofors 40 mm L/60 gun.
- The Air Defense Gun, unlike the majority of buildings, does not benefit from the Hit points bonus granted by Large and Major Cities.
Gallery[]
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