The Soviet Politburo passes a resolution to execute 346 "enemies of theCPSU and the Soviet Government" who led "counter-revolutionary, pro-Trotskyist, plotting and spying activities", signed by secretaryStalin, 17 January 1940.
The termpolitburo in English comes from theRussianpolitbyuro (политбюро), itself an abbreviation ofpoliticheskoye byuro (политическое бюро 'political bureau'). TheSpanish termPolitburó is directlyloaned from Russian, as is theGermanPolitbüro.Chinese uses acalque (Chinese:政治局;pinyin:Zhèngzhìjú), from which theVietnamese (Bộ Chính trị部政治), andKorean (정치국, 政治局Jeongchiguk) terms derive.
InMarxist–Leninist states, the communist party is thevanguard of the people, therefore the legitimate body to lead the state. The party selects officials to serve in its politburo, which decides party policy. As aone-party state, party policy invariably becomes national policy.
EachParty Congress elects aCentral Committee which, in turn, elects the members of the politburo, secretariat, and ageneral secretary. This process is termeddemocratic centralism. In theory, the politburo is answerable to the Central Committee, however in practice all the authority lies with the politburo.
InTrotskyist parties, the Politburo is a bureau of the Central Committee tasked with making day-to-day political decisions, which must later be ratified by the Central Committee. Its members are chosen by the Central Committee, who appoints it. The post of General Secretary carries far less weight in this model. See, for example, theLanka Sama Samaja Party.