Wiktionary
silovik
n. (context politics English) A Russian politician from the old security or military services, often the KGB, FSB, and military officers or other security services who came into power during the 1990s or 2000s.
Wikipedia
Silovik
Silovik (; plural: siloviki, ) is a Russian word for politicians from the security or military services, often the officers of the former KGB, GRU, FSB, SVR, the Federal Drug Control or other security services who came into power. It can also refer to security-service personnel from any country or nationality.