> There is a nice grassy plain from Poland all the way through to the Caucasus
That would be the Pripyat Marshes? That is notoriously inhospitable terrain for armies.
That would be the Pripyat Marshes? That is notoriously inhospitable terrain for armies.
They're not really a big obstacle, given the two land invasions that came from the West in the 20th century.
Both unsuccessful. But I note your observation that the Pripyat is not as large as my crap geography led me to think.
The Polish invasion in 1920 was pretty effective too until it wasn't, same for Napoleon, etc. Point being its a big corridor for large troop movements.