At the same time, the United States, supplied over 60% of Soviet machine and equipment, stopped armament shipments to the Soviet Union after the Molotov–Ribbentrop Pact. It imposed a full embargo after the Soviets 1939 invasion of Finland. Soviet quality controllers were expelled from the United States aircraft industry and already paid-for orders were suspended. With similar trade with France and Britain ceased, Germany was the only alternative for many goods.