Soviet War Memorial
The Soviet War Memorial in Berlin stands as one of three monuments built by the Soviet Union to honor its fallen soldiers. It especially commemorates the estimated 80,000 members of the Soviet Armed Forces who died during the Battle of Berlin in April and May 1945.
Location, guardianship, and legal status
The memorial sits in what was once the British sector of the divided city. During the years of Berlin’s partition, Soviet troops guarded the site, which has led to a common belief that it enjoyed extraterritorial status. In fact, it did not. The memorial remained under local jurisdiction despite the continuous Soviet presence.
Today, its upkeep is governed by a bilateral treaty between Germany and Russia. Under this agreement, Germany is responsible for maintaining the monument and ensuring it remains in good condition.
Source - https://en.wikipedia.org/wiki/Soviet_War_Memorial_(Tiergarten)