The four dangerous powers that violated international treaties and status quos between the two wars were the German Nazis, Japanese militarists, Italian fascists, and the Soviet communist regime. After all, the USSR and Nazi Germany had an economic partnership based on their military long before the Molotov-Ribbentrop Pact. The Soviet Union was the main supplier of military raw materials to Germany, which had nothing except coal.It is not overstatement that the Soviet Union greatly helped Hitler’s Germany and its rise of military industrialization. In return, the Soviets were interested in sophisticated German weaponries. “When we visited them, the boastful Germans were showing off their innovative techniques and weapons,” reported the Soviet designers visiting Germany at the invitation of the Wehrmacht at the time.