High Quality Content by WIKIPEDIA articles! The Siege of Sevastopol took place from 30 October 1941 to 4 July 1942 between German forces and those of the Red Army, the Black Sea Fleet and elements of the Red Air Force over the control for the main Soviet Black Sea Fleet naval base during the Second World War. It is notable for use of German heavy artillery (200-800mm range) during the siege. The German 11th Army, commanded by Erich von Manstein, besieged Sevastopol. At the time of the final assault in June 1942 the army consisted of 9 German infantry divisions (including 2 received during the battle) in two corps, and two Romanian rifle corps, plus various supporting elements including 150 tanks, several hundred aircraft, and one of the heaviest concentrations of artillery fielded by the Wehrmacht.