[aaimnr]

Maybe there's a reason why it's not mentioned in Wikipedia? Like, eg. it's not founded on any reasonable sources?

Since you mention Wikipedia, are you suggesting all of the below are false as well?

http://en.wikipedia.org/wiki/Soviet_invasion_of_Poland http://en.wikipedia.org/wiki/Winter_War http://en.wikipedia.org/wiki/Occupation_of_the_Baltic_states