Russian troops did the same thing during WWII in Germany and went completely unhinged when reaching Berlin. Between the months of January and August of 1945, Germany saw the largest mass rape in history and it continued unabated until 1948 when Russian troops returned to their camps in Russia.
And the same thing in 2008 invading Georgia
https://www.theguardian.com/world/2008/aug/14/georgia.russia
Link: https://english.alarabiya.net/features/2018/03/11/PICTURES-The-largest-mass-rape-in-history