For starters, he didn't know why he got a letter about something urgent. Didn't they hate him? Wait, wait, there were multiple versions of other nations. From different eras. How did that happen...? He didn't really want to go, since bad memories would resurface, but maybe he'd have a bit of amusement with bothering other nations.
Especially the Allies, those bastards. 'Hey, look, we're gonna fuck up your life forever, Gilbert'.
Not funny.
Not funny or amusing at all.
Now, where were they . . .?
He searched around for somebody to bother or start a fight.