Historically, Germany has always been a militaristic country who have repeatedly tried to take over the world (however childish that sounds). Last time around they killed several dozens of millions of people.

Today German industry still makes weapons used to kill people around the world.

While the Greeks haven't really bothered anyone except the Turks and a little bit the Bulgarians. Too busy drinking ouzo I guess.

So the Greeks leave the euro.

And we nuke the Germans to ensure the future of humanity? Or perhaps, instead of bailing them out, the Allies should have made Germany into an agrarian society with the same result.

See how nasty this game becomes?