Key point: Washington has worked hard to keep its tank as one of the best. However, so has Moscow.
Developed in the 1970s, the Abrams main battle tank has been the mainstay of the U.S. Army’s armored forces for 35 years. In the decades since the M1 entered service, the tank has been upgraded many times—receiving a new 120mm gun to replace the original 105mm weapon and ever-improving armor. Internally, the tank is barely recognizable as the latest M1A2 SEP v.2 machines are completely digital and networked. The U.S. Army is also eventually planning to develop a new variant called the M1A3 that will greatly improve the venerable tank and try to decrease its ever-increasing weight—a consequence of the many upgrades.
Meanwhile, tank development has not stood still in other parts of the world. The Soviet Union may be long gone and there is no longer the threat of a massive Red Army onslaught coming through the Fulda Gap in Germany, but Russia has continued to develop its tanks—the latest operational incarnation is the formidable T-90 main battle tank. Nonetheless, main battle tanks aren’t really the priority they used to be for most Western powers.
The T-90 is a development of the older T-72, which the Russian government decided to settle on after the more sophisticated T-80 proved to be a disaster during the wars in Chechnya. The T-90 is essentially a T-72 upgraded with the more advanced systems found on the T-80U, but ditches the T-80’s troublesome gas turbine engine. Instead, the most common version of the T-90 uses a 1000hp diesel engine—which gives it a somewhat less than ideal power-to-weight ratio. The T-90 adds a new laminated armor package, explosive reactive armor and an electronic countermeasures suite. It retains the standard 125mm gun. Overall, it’s a pretty formidable tank—a significant improvement over previous Russian tanks.
On a one-for-one basis, the M1A2 is still a superior design—but it’s also a lot more expensive. U.S. armor doctrine places a premium on seeing the enemy first and getting the first shot to ensure victory—a result of decades worth of analysis. The Abrams is designed around that concept.