The 4th Tank Brigade was established in late 2017 with the purpose of serving as a reserve unit to the
1st and
17th Tank Brigades within the Ukrainian Armed Forces. During the
Russo-Ukrainian War in 2019, the 4th Brigade was sent to the
Joint Forces Operation Zone to support the
72nd Mechanized and 36th Marines brigades. The brigade was equipped with T-72 and
BMP-2 IFVs, and various artillery pieces. In October of that year, the brigade participated in a joint exercise that involved crossing a river, supported by attack helicopters, and attacking suspected enemy positions. When Russia invaded Ukraine in February 2022, the 4th Tank Brigade was deployed to help defend the northeastern part of the country. On August 1st, 2025, the 4th Tank Brigade was stripped of its third tank battalion in accordance with its conversion to a Heavy Mechanized Brigade. It was the last Ukrainian Ground Forces unit to be thus converted. == Insignia ==