Denmark and Sweden have warred before, but not for a couple hundred years, and never with such an arsenal of memes.

On Thursday morning, Sweden.se (@swedense) fired the first shot with a dis on Denmark's small size:

Denmark.dk (@denmarkdotdk) fired back with an attack on Sweden's reputation for governmental regulations:

Before long they were exchanging insults on everything from language ...

... to landscape ...

... to "whose flag is it anyway?"

For now, the warring parties seemed to have reached a wary truce.