The Soviet Naval Infantry and their Russian successors have a reputation as elite shock troops. For their black uniforms and ferocious performance in combat in the Black Sea and Baltic Sea regions during World War II they received the nickname "The Black Death" (German: "der schwarze Tod"). The Russian Naval Infantry is a mechanised force, organised in brigades, independent regiments and independent battalions. The 55th Naval Infantry Division of the Pacific Fleet has been disbanded in 2009 and replaced by two separate brigades. Each brigade has a tank battalion, a self-propelled artillery battalion, a self-propelled air defence battalion, mechanised marine infantry battalions, other support units and one Airborne Assault Naval Infantry Battalion ("десантно-штурмовой батальон морской пехоты"), parachute and air assault qualified, with the mission to spearhead amphibious landings.