Original sentence: After the German invasion of the USSR in June 1941, the Soviet Union became engaged in the Second World War, which they referred to as the Great Patriotic War.Of the 13 units of the Type S (Stalinets), Series IX and IXbis, only this boat survived the war.Petersburg was named after him,  and monuments dedicated to him were erected in Kaliningrad, Kronstadt, and Odessa.The Soviet high command of the Baltic Fleet decided that the M-96 should be sent to the Caspian Sea to serve there as a training boat
Edited sentence: After the German invasion of the USSR in June 1941, the high command of the Baltic Fleet decided that the M-96 should be sent to the Caspian Sea to serve there as a training boat.Of the 13 units of the type S (Stalinets), series IX and IXbis, only this boat survived the war.Petersburg was named after him, and monuments dedicated to him were erected in Kaliningrad, Kronstadt, and Odessa