It's Déjà Vu All Over Again...
More precisely, it's 1939 all over again... In the summer of 1939 the Molotov–Ribbentrop Pact was signed, a non-agression pact between the Soviet Union and Nazi Germany. It also was an agreement as to how they would divide up Europe by conquest without stepping on each other's "turf", including what part of Poland Germany would get and what part of Poland Russia would annex.