Two of the most significant military parades on Moscow's Red Square were 1941 October Revolution Parade and the Victory Parade in 1945. Individual parades on the square were held on 7 March 1919 and 27 July 1920 in honor of World Congresses of the Communist International, on 7 February 1934 in honor of the 17th Congress of the All-Union Communist Party (Bolsheviks), on the very first Day of Tankmen in 1946 and one following the state funeral of Joseph Stalin in March 1953. Today, the square serves as the foremost parade venue in the nation. Rehearsals for these parades took place at Khodynka Aerodrome and Vnukovo Airfield in the Soviet era and the Alabino in the modern era.