Answer:
I believe you mean the Molotov - Ribbentrop Pact. Its was the Pact of nonaggression between Soviet Russia And Hitler's Germany. They Signed this treaty for both large and powerful nations at the time to agree on conquestable lands (Poland and Other Baltic Countries). But it was still more of a Non-aggression until Hitler broke it and started War Against Soviet Russia, Which was a very bad move.
Explanation: