Twenty-five years ago, Margaret Thatcher went to Bruges to set down a marker on Britain's relationship with the EU.
The speech set off a wave of euro-scepticism that eventually toppled her.
When David Cameron makes his long-awaited Europe speech on Friday, it will be a seminal moment in his premiership.
The BBC's Political Editor Nick Robinson has been back to Bruges to see what awaits Mr Cameron on the continent.
Charles Powell, who drafted the Bruges speech, told him: "A prime minister has a duty at some point to spell out what the British strategy to Europe is for the future.
"If we go out, who's to know who might follow a year or two later? It would be the first step towards disassembling the European Union. It would be crazy. And they need us too."
Get in touch with Today via
or text us on 84844.