Video : Russian attacks on Mannerheim line

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Map of the Mannerheim Line, the Finnish main defense line across the Karelian Isthmus in Winter War.

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| Artist: User Jniemenmaa on en.wikipedia | Credit: Originally from en.wikipedia; description page is (was) here (Uploaded using CommonsHelper or PushForCommons) | Creative Commons License: http://creativecommons.org/licenses/by-sa/3.0/

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