The T-84 is a Ukrainian main battle tank, designed and manufactured by the Kharkiv Morozov Machine Building Design Bureau. It is an advanced version of the T-80 series, incorporating many features found on the T-90. The T-84 is equipped
From Wikipedia
The T-84 is a Ukrainian main battle tank (MBT), based on the Soviet T-80 MBT introduced in 1976, specifically the diesel engine version: T-80UD. The T-84 was first built in 1994 and 10 vehicles entered service in the Ukrainian Armed Forces in 1999 under the name BM Oplot. Its high-performance opposed-piston engine makes it a fast tank, comparable to other modern MBTs with a power-to-weight ratio of about 26 horsepower per tonne.