"=A-10 Warthogs used their antitank cannons in Falluja=== 

 ''House to House: A Soldier's Memoir'' - Page 74. By David Bellavia, John R. Bruning - 2008 - 347 pages. 
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 |""Every weapon available in our arsenal short of nukes is turned on Fallujah. The pre-assault bombardment is unrelenting. Jet after jet drops its bombs and rockets. Warthogs—the big, bruising A-10 Thunderbolt II close-support aircraft  strafe the main avenues into the city with their 30mm antitank cannon. Fallujah is smothered in bombs, shrouded in smoke. Buildings collapse. Mines detonate. Artillery roars."" 
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