An AAT of the Federation's army.
The AAT Battletank, (Armored Assult Tank), was a tank used in the army of the Trade Federation and later the armies of the Confederacy of Independant Systems in the Star Wars universe.
It is piloted by four Battle Droids (1 commander, 1 pilot, 2 gunners). The tank is armed with a later turrent, two laser cannons, two short-range blaster cannons, and six ordanace launchers.
AAT Battletanks, alongside MTTs and STAPs, made up the invasion army that conquered Naboo.