The Berlin Soviet War Memorial in Treptower Park is the biggest of the three war memorials the USSR left in Berlin after the end of the Second World War. It was built to the design of the Soviet architect Yakov Belopolsky as a memorial for 5,000 of the 80,000 Soviet soldiers who died in the Battle of Berlin between April and May 1945. It opened four years after World War II on May 8, 1949, and it used to serve as the central war memorial in East Berlin.