"

 There's another sensible point. For the Balt republics, their occupation by the Soviets (which was actually legal) was considered illegal by western historians, and presented as such. So the fact that, for instance, Moldova has not been ""invaded"" is not fully meaningful, because it was an invasion in fact. You cannot say Romanians gave up by their own will. They were just waiting to fight back at a time where they would not have been destroyed.  "