He is Polish. Says it all. Probably still feels bad for ex-glorious Rzhecz Pospolita dragged into the dirt by the more powerful state. You should ask him about the Polish monstrocities on the territory of modern Belarus and Western Ukraine during pOlish occupation. About mass rapes, slaughtering of innocent and independent people, mass muder of Orthdox church priests and forcing people into Catolycism. See what he answers.
Also about Poland participating in partition of Chechoslovakia in 1938 and Polish government escaping the country on September 17, 1939.