=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. 
 {| class="wikitable" border="1"  cellspacing="0" 
 |"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." 
 |} 

 ==