Soviet Foreign Commissar Vyacheslav Molotov signs the German-Soviet nonaggression pact; Joachim von Ribbentrop and Josef Stalin stand behind him. Moscow, August 23, 1939, from Patch-NA
German troops parade through Warsaw, Poland. PK Hugo Jaeger, September, 1939 from Patch-NA

"Europe Aug. 29, 1939" map - double page from Time 1939/08/29
Poland invaded by Hitler, Stalin, cartoon frm Life 1939/09
Athenia sunk by German sub, Current History 1939/09/03
"Polish Collapse" map of Poland, from Time 1939/09/25