A digression: in effect of the secret protocol being signed, then-USSR attacked Poland on 17-th of September 1939 (co-starting the 2WW, together with Germany). Wikipedia articles describing this "event" are typically named "Soviet invasion of Poland" or "Soviet occupation of East Poland", or something similar: https://en.wikipedia.org/wiki/Soviet_invasion_of_Poland
The Russian version is titled: "Polish march/hike/walk of the Red Army (1939)", and Russian speaking Wikipedians don't like the idea of changing the title.
The Russian version is titled: "Polish march/hike/walk of the Red Army (1939)", and Russian speaking Wikipedians don't like the idea of changing the title.