The T-72 was the most common tank used by the Red Army from the 1970s to the collapse of the Soviet Union. It was also exported to other Warsaw Pact countries, Finland, India, Iran, Iraq, Syria and Yugoslavia, as well as being copied elsewhere, both with and without licenses. Many Western analysts regard this as worrisome because, at least theoretically, its 125 mm 2A46 main gun is capable of destroying any modern main battle tank in the world today, including the M1 Abrams. The T-72 exhibits many design features shared with other tank designs of Soviet origin. Some of these are viewed as deficiencies in a straight comparison to NATO tanks, but most are a product of the way these tanks were envisioned to be employed, based on the Soviets' practical experiences in World War II.