Russia has marked the 75th anniversary of the country's victory in the Battle of Stalingrad with a military parade in Volgograd. The southern city was named Stalingrad between 1925 and 1961, after the then leader of the Soviet Union, Joseph Stalin. Military forces and equipment were paraded through the city. Media reports said many of the weapons showcased are currently in service.  The Battle of Stalingrad was a turning point during World War Two, and a crushing blow to the hopes of Adolf Hitler expanding on the eastern front.