The Federal Security Service of the Russian Federation (FSB) (Russian: ФСБ, Федеральная служба безопасности Российской Федерации; Federal'naya sluzhba bezopasnosti Rossiyskoy Federatsii) is the main domestic security agency of the Russian Federation and the main successor agency of the Soviet Committee of State Security (KGB). Its main responsibilities are counter-intelligence, internal and border security, counter-terrorism, and surveillance. Its headquarters are on Lubyanka Square, downtown Moscow. The direct predecessor of the FSB was the Federal Counterintelligence Service (FSK). On 3 April 1995, President Boris Yeltsin signed a law ordering a reorganisation of the FSK, which resulted in the creation of the FSB.