Thaddeus
I know very little about the Polish Soviet war. Was the sucess of the Polish counter offensive that unexpected? While we are at it do you have any reading to reccomend on this war?
This
article by a US Army officer might interest you. It's a pity that there has been so very little research done on this particular conflict in the West. The Soviet military establishment wrote about and extensively studied the war in the early (*) inter-war period, but of course, next to none of this has ever been translated into English.
(*) In the later part of the period, attempting an honest evaluation of the war as a whole became impossible under the Stalinist regime, due of course, to the fact any such evaluation would require finding fault with the dictator's problematical behavior during the campaign. Such heresy was all but a guaranteed death sentence.