Firepower: 120 smooth-bore guns and long barrels, dual-purpose guns, extended-range ammunition, depleted uranium ammunition, integrated fire control day and night, and on-board computers.
Armor: Chobham and reactive armor are the two most important items, especially Chobham. There are also active protection systems such as reaction bombs.
Maneuverability: Since the United States changed Huey's turboshaft engine into a gas turbine and installed it on the abrams, the power of the tank has been greatly improved, which is a very important item.