Analysis of information sources in references of the Wikipedia article "Країни Осі" in Ukrainian language version.
The Soviet Union participated as a cobelligerent with Germany after September 17, 1939, when Soviet forces invaded eastern Poland
As a co-belligerent of Nazi Germany, the Soviet Union secretly assisted the German invasion of central and western Poland before launching its own invasion of eastern Poland on September 17
The Soviet Union participated as a cobelligerent with Germany after September 17, 1939, when Soviet forces invaded eastern Poland
The Soviet Union participated as a cobelligerent with Germany after September 17, 1939, when Soviet forces invaded eastern Poland
As a co-belligerent of Nazi Germany, the Soviet Union secretly assisted the German invasion of central and western Poland before launching its own invasion of eastern Poland on September 17
The Soviet Union participated as a cobelligerent with Germany after September 17, 1939, when Soviet forces invaded eastern Poland