The BMD-4 is an amphibious infantry fighting vehicle (IFV) originating from post-Cold War Russia. Originally designated as the BMD-3M, the chassis of the BMD-4 is the same as that of the BMD-3 because it was developed on the same basis. This armored fighting vehicle is one of the lightest in its class, possessing a substantial amount of firepower. The vehicle was designed to transport Russian Airborne Troops (VDV), increasing its mobility, armament, and protection on the battlefield.

The BMD-3 is a light infantry fighting vehicle originating in the Soviet Union that is fully amphibious and air-droppable with crew inside. It is intended to be used by airborne and air assault units. It is not an upgraded BMD-1 but a completely redesigned vehicle with a hydropneumatic suspension, new hull, a more powerful 2V-06-2 diesel engine and fitted with the complete turret of the BMP-2.