There is also said to be as many as 12 underground levels beneath the Russian capital of Moscow to protect the government in the Kremlin, known as the Main Directorate of special programs of the President (Glavnoye Upravlenie Specialnih Program: GUSP) the direct successor of the 15th Directorate of the KGB, which was established in 1977, GUSP is said to oversee, amongst other sites, a parallel track line alongside the Moscow metro, known as the 'Kremlin line' Metro-2 or D-6 to be used in an emergency.