You know, this way all Poles Should hate Germans! and Russians!
Because of the past?
In that kind of situation when past giving people so much emotions, it should be sayed quietly beetween own. And if you like someone or not shouldn't be because:
my grandpa sad...or my mother always saying...my country do not like... etc
that kind of feeling should be your own, cos you never know what life will bring...and your so called ''enemy''
(cos honestly I do believe that to all of you on this forum Japanese people didn't do any harm personally) might one day be the only who can help! :)