Timing of a Border poll

Sir, – Newton Emerson ("Nationalist timeframe for unity does not stack up" (Opinion, December 9th) states: "The period between polls would in practice be determined by results: a 51 per cent unionist win could hardly delay the next vote for 20 years. But for now the timeframe is still marked in generations, not a decade."

I was under the impression that the interval between Border polls, as set out in the Good Friday Agreement, was seven years, not a decade, 20 years or a generation.

– Yours, etc,

JUDE COLLINS,

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Greenisland,

Co Antrim.