question: Why did Poland deny the proposal of the Soviet Union protecting them from a German Attack ?
answer: once the Red Army entered their territories , it might never leave .
turker_answer: Poland denied the proposal of the Soviet Union to protect them from a German Attack because once the Red Army entered their territories , it might not leave .
rule-based: Poland denied the proposal of the Soviet Union protecting them from a German Attack once the Red Army entered their territories , it might never leave .