This article discusses security and intelligence services in Russia. In Russia, the security and intelligence services of the nation have always been critical to the country's foreign and domestic policies. Both have served as a means to dig dissent at home, to frustrate enemy intelligence operations, and to provide information necessary to build nuclear weapons. This article begins with the nature of intelligence services in Russia. It also discusses the Stalin and Repression period and the role of Russia's KGB during these periods. The article also considers CHEKA's (Extraordinary Commission for Combating Counterrevolution and Sabotage) foreign intelligence. The military services, post-Soviet intelligence services, Putin, and the rise of Siloviki are also discussed.