M1A2 Main Battle Tank Firing Main Gun - Interior View

M1 Abrams Main Battle Tanks from the 7th Battalion, 1st Brigade, 3rd Infantry Division demonstrate fire and maneuver tactics for Estonian soldiers during a live-fire exercise. The main armament of the M1A2 is the M256A1 120 mm smoothbore gun.

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Video credit: Staff Sgt. Cody Harding
Additional editing: AiirSource