I don't think such nationalism would get anywhere IF those kids KNEW about their history and the consequences of hitler's actions. I've a feeling they're as ignorant of their history as American kids are of ours (thanks to idiot educators).
If they knew history, and understood what happened and why, then they wouldn't be so apt to 'discover' this 'hidden knowledge' that their countries are trying to supress/sanitize and run with it.
BTW, one of the GREAT WW II Movies..."Deat in the South Atlantic" from the book of the same name, tells the story of the British hunter group, consisting of three much smaller, and outgunned ships, HMS Exeter, Achilles, and Ajax, which cornered the Graf Spee..