“Resignation of the head of intelligence was reaction on reforms”
General Valentin Korabelnikov had headed the main directorate of intelligence, known as the GRU, since 1997.
The Kremlin said the general had reached retirement age.
He will be most remembered for the role played in both the first and second anti-terrorist campaigns in Chechnya.
According to the Interfax news agency, the general will now become an advisor to the military.