Westerners blew up the world with nationalism during...German unification? In 1989? Or are you making a cryptic reference to 1871... I know this is someones "

Westerners blew up the world with nationalism during...German unification? In 1989? Or are you making a cryptic reference to 1871... I know this is someones "I'm too scared to be edgy on my main account" account, but still, make it clear what you are referring to!