I live in Norfolk these days. A mere couple of furlongs down the road is the River Waveney, which around these here parts is the border between Norfolk and Suffolk. I believe the differences between the ancient North and South `folk` used to be very much a tribal thing.
When the Jack Rascal Terrorist and I were returning from our largely Suffolk walk last night, we crossed the river back into Norfolk via a small stone bridge by a weir and a beautiful pool bordered by weeping willows. The border remains unguarded, unlike this one.
We do, however, have the occasional border ceremony which may well have been where those other people got the idea from, as I distinctly heard `mine's a pint` shouted in a Hindustani accent. I do hope they don't have nuclear weapons, after all, we need a cool head and steady hand for those things.