Quote Originally Posted by ShadesPanther
The soviets are usually considered part of the allies but slightly different.
Well The Russians/Soviets had been invaded through Poland many times over the last few centuries, They wanted a buffer zone and they got it.

Not really they wanted SATELITE state not a buffer zone because imposing a government you have to sustain using large army based on its territory is not the greatest idea to have a buffer - rather to fuel hatered and rebellion - the SU was never interested in buffor states it was interested in conquest so their citizens had nowhere to run away or to compare with.