of Soviet resistance before Soviet forces launched a huge counterattack on November 19. This resulted in the Soviet encirclement of the German Sixth Army and other Axis units. On January 31, 1943 the Sixth Army's commander, Field Marshal Friedrich Paulus, surrendered, and by February 2, with the elimination of straggling German troops, the Battle of Stalingrad was over. The bombing campaign and five months of fighting that followed utterly destroyed 99% of the city. In 1945 the Soviet Union awarded Stalingrad the title Hero City for its resistance. Great Britain's King George VI awarded the citizens of Stalingrad the jeweled "Sword of Stalingrad" in recognition of their bravery. A number of cities around the world (especially those that had suffered similar wartime devastation) established sister, friendship, and twinning links (see list below) in the spirit of solidarity or reconciliation. One of the first "sister city" projects was that established during World War II between Stalingrad and Coventry in the United Kingdom; both had suffered extensive devastation from aerial bombardment. In March 2022 this twinning link was paused because of the 2022 Russian invasion of Ukraine. Volgograd On 10 November 1961, Nikita Khrushchev's administration changed the name of the city to Volgograd ("Volga City") as part of his programme of de-Stalinization following Stalin's death. This action was and remains somewhat controversial, because Stalingrad has such importance as a symbol of resistance during World War II. During Konstantin Chernenko's brief rule in 1984, proposals were floated to revive the city's Stalinist name for that reason. There was a strong degree of local support for a reversion, but the Russian Soviet government did not accept such proposals. On May 21, 2007, Roman Grebennikov of Communist Party was elected as mayor with 32.47% of the vote, a plurality. Grebennikov became Russia's youngest mayor of a federal subject administrative center at the time. In 2010, Russian monarchists and leaders of the Orthodox organizations demanded that the city should take back its original name of Tsaritsyn, but the authorities rejected their proposal. On January 30, 2013, the Volgograd City Council passed a measure to use the title "Hero City Stalingrad" in city statements on nine specific dates annually. On the following dates, the title "Hero City Stalingrad" can officially be used in celebrations: February 2 (end of the Battle of Stalingrad), February 23 (Defender of the Fatherland Day), May 9 (Victory Day), June 22 (start of