Answer:
A failed coup d'état by hard-line CPSU leaders against Soviet president and party general secretary Mikhail Gorbachev. It was completely outlawed three months later on 6 November 1991 on Russian territory. So, it was the Soviet hammer and sickle flag that was lowered for the last time over the Kremlin, thereafter replaced by the Russian tricolor. that ended the Control.
Step-by-step explanation: