An open letter and history lesson:

All this is well known. I should like you to think about something that is less well known, Herr Grass, and that is the fact that the First and Second World Wars were entirely unnecessary. That’s right: the fact that they were fought in the first place is entirely the fault of people like you, and specifically of Kaiser Wilhelm II, who could have pre-empted them in 1905. Kaiser Wilhelm II and Günter Grass: a couple of soul-mates.

Like some of the commenters there, I always found The Tin Drum unreadable, in German or English.