Lets remember the fact that from 1200s to the 1700s (about 500 years) it was Poland that was the aggressor annexing such Russ cities as Kiev, Smolensk, etc. Only the Kieven Russ cities as far east as Moscow were spared and that was because they were already conquered by the Mongol Golden Horde. From the 1400s to the late 1700s there was a drive amongst the eastern Rus to reunify the principalities and then reclaim the lands of the Kieven Russ, most of which at that point were in the hands of the Polish-Lithuanians, Mongols and the Swedes.
"(about 500 years) it was Poland that was the aggressor "
And they occupied us only for 123 years!!! That's not fair!
They should have stayed here for at least another 300.