A gamble that has pushed one of the most successful political unions to edge
The reaction to the UK's vote to leave the EU has been dramatic. Sterling has fallen to levels not seen since 1985, David Cameron has resigned as prime minister, and S&P has said the nation's AAA credit rating is now "untenable".
Beyond the immediate reaction to the historic referendum result, however, Cameron leaves a damning longer-term political legacy which may now see not just a Brexit, but also the UK itself unravelling.
The tragedy is that this pathway was by no means inevitable, and stems in large part from the prime minister's own unwise decisions in office.