I was given by parcicipant of russian historical forum (www.vif2ne.ru) the statistics of russian MEMORIAL organisation about repressions of soveits toward polish citizens.
Unfortunatly all articles on russian language.
http://www.memo.ru/history/POLAcy/vved/Index.htm
The table with factual numbers.
http://www.memo.ru/history/POLAcy/vved/tabl.htm#_VPID_2
I note that data is about polish citizens and former polish citizens dwellers of annexed territories who later got soviet citizenship. About 2\3 of them ethnic poles.
Total number of repressed is about 700 thousands (poles plus polish citizens). But it is not number of killed. It is number of deported, arrested and so on.
The participant who gave me those data said that those data already publicised in Poland and polish historians
agreed with them.
So I conclude to m_68 that your numbers of deported ethnic poles - 2 mlns is "over-inflated" to say least.
All number of deported, injailed polish citizens is about "700 thousands" BUT for all period from 1939 to 1956 - the end of Stalin repressions.
Your claim that "700 thousands poles was killed" is absolutely unfounded.
I presume that you somehow substituted "700 deported and injailed former polish citizens for period from 1939 to 1956" as "700 thousands of killed ethnic poles in period of 1939-41".
I call such substitution as distortion in purpose of propaganda.
I looked up a few Polish sources and found wildly differing figures. My old high school texbook from 1992 says 1,5 million arrested and deported between 1939-1941. But another rather reliable source on the web (on the site of the bishopric of the Polish Army-in Polish language of course http://www.ordynariat.opoka.org.pl/artykul_wiecej.php?idartykul=38) gives numbers as low as about 350 thousand. So I presume you figures might be quite right. The highest numbers (2 mln) come from the sources in Polish goverment in London during the war and immediatly afterwards.
Another respectable source, Polish online encyclopedia http://encyklopedia.pwn.pl/16444_1.html says 300 thousand. But it's not clear whether they are only ethnic Poles or all polish citizens. Anyway, much less than 2mln (but not little too). I wouldn't say that Polish government in London gave those exaggerated figures on purpose. After katyn and after Soviets stopped recognizing legal polish authorities they had good reason to expect everything from the russians.