Celebrating May Day on Moscow's Red Square. Standing on the Lenin Mausoleum's rostrum [right to left] are Leonid Brezhnev, General Secretary of the Soviet Communist Party's Central Committee, Member of its Central Committee's Politburo and Chairman of the Presidium of the USSR Supreme Soviet [Parliament], Member of the Politburo of the Soviet Communist Party's Central Committee and Chairman [Prime Minister] of the USSR Council of Ministers [Government], and Konstantin Chernenko, Member of the Politburo of the Soviet Communist Party's Central Committee.