Exactly one month from today, four million Scots will go to the polls to answer a simple question: “Should Scotland be an independent country?”

When David Cameron was here last week to call on Scots to reject independence from theUnited Kingdom, he did it by promising more powers for the devolved Scottish parliament. Scots could have the “best of both worlds,” the prime minister argued. 

What kind of relationship would Scotland have with the rest of the UK if independence were to happen? UK Chancellor George Osborne says Scotland and the rest of the UK would become foreign countries. However, Scotland's First Minister Alex Salmond says that to Scots England, Wales and Northern Ireland would never be foreign.

No sooner had the leaders of the so-called "People's Republics" of Donetsk, Luhansk, and Odessa declared the return of "Novorossiya" ("New Russia") earlier this month than they began fighting among themselves. Though they agree that the entire southeastern portion of Ukraine should join their self-proclaimed breakaway nation, they are divided over who should lead this new government.

When I first drove down to live in Cornwall more than 20 years ago, I was met by a graffiti message on a railway bridge near Truro: "Go home, English!" I should have taken it personally. I should have politely turned around to head back across the Tamar.

The sign outside the new visitor centre reads simply “The Battle of Bannockburn” as though one had rolled up in time for the fight, instead of 700 years too late. The approach to the site goes through the dull suburbs of Stirling, via a northerly spur of Scotland’s patchy motorway system.

With support growing for independence just months before Scots decide whether to break up with Britain, outsiders are weighing in with impassioned calls to keep the three-century-old union together.

A relationship on the rocks is never a pretty sight. England’s 307-year union with Scotland is imperiled by a Scottish referendum set for September on seceding from the United Kingdom.