Editing Molotov-Ribbentrop Pact (section)

=== Why did the USSR intervene in former Poland? ===
On the 15th of September, German Foreign Minister warned Friedrich Werner von der Schulenburg, the German ambassador to Moscow, that if Moscow did not enter eastern Poland, there would be stateless areas in which new states may form.<ref>https://avalon.law.yale.edu/20th_century/ns072.asp</ref> Ribbentrop did not refer to "Poland" in this message. He did, however, refer to the area lying "...east of the German zone of influence." This shows that Germany did not view Poland as a legitimate political entity. Schulenburg reported this to Molotov. 

In a summary of Molotov's reply, Schulenburg confirmed that the Germans believed that Poland no longer existed.<ref>https://avalon.law.yale.edu/20th_century/ns073.asp</ref>

Even if the argument could be made that a Polish state still existed at this time, the USSR would have to deal with the fact that Germany no longer recognized such an entity. This meant that the whole Spheres of Influence regarding Poland was void. This also meant that Germany could advance hundreds more kilometers to the Soviet border, and form pro-Nazi puppet states in these areas, as they were attempting to do.<ref>Julius Mader, Hitlers Spionagegenerale sagen aus. Berlin: Vlg. der Nation. 1971, 122; 124.</ref>