Russian organized crime or Russian mafia (Russian: росси́йская ма́фия, tr. rossíyskaya máfiya, IPA: [rɐˈsʲijskəjə ˈmafʲɪjə], Russian: ру́сская ма́фия, tr. rússkaya máfiya, IPA: [ˈruskəjə ˈmafʲɪjə]), otherwise known as Bratva (Russian: братва́, tr. bratvá, IPA: [brɐtˈva], lit. 'brotherhood'), is a collective of various organized crime elements originating in the former Soviet Union. The initialism OPG is Organized Criminal (prestupnaya in Russian) Group, used to refer to any of the Russian mafia groups, sometimes modified with a specific name, e.g. Orekhovskaya OPG. Sometimes the initialism is translated and OCG is used.