1941
Finnland
Nazi Germany Attacked them.
It attacked Poland from the east as part of the nazi-soviet pact.
The Nazi Party of Germany attacked the USSR on June 22, 1941.
The German invasion of the Soviet Union in 1941 succeeded in part because they attacked with no warning. The Soviet Union didn't have time to react to the German army's invasion.
Joseph Stalin and the Soviet Union.
His intention fired back at him because, although he had a treaty with the Soviet Union, he ignored it and attacked them anyway. So, as a result the Soviet Union joined the Allies to defeat Hitler.
It attacked Poland from the east as part of the nazi-soviet pact.
Germany broke the Non-Agression pact with the Soviet Union and attacked them therefore Soviets joined the allies to fight Germany.
In Canada,The North Pole, and Banana
They attacked the Soviet Union - Operation Barbarossa.