How did USSR leadership play a role in deteriorating relationship between East and West? - Gerontocracy in USSR entrenched in 70s until March 1985 when Gorbachev came into power. Brezhnev died 1982, but from 75 was more or less just a figurehead. - 1980, average Politburo member 70 and by 82, Gromyko, Ustinov all in their mid-to-late 70s. - Andropov, 68 year old successor to Brezhnev, seriously ill with kidney disease upon taking power, succeeded by Chernenko 15 months later, only for the latter to die after 13 months. Replaced with Gorbachev. Chernenko third Soviet leader to die in less than 3 years, and Reagan is meant to have mocked this rapid succession of leaders.