Sir John Major has warned that a hard border in Ireland will be unavoidable unless Brexiters start to take on board the “collateral damage” that exiting the EU will cause in Northern Ireland.
He said that the words “customs union” had become “toxic” and that efforts to find an alternative solution to the border amounted to “limp promises”.
The Conservative former prime minister said that Brexiters needed to understand that unless the UK stays in a customs union and has regulatory alignment with the EU, checks will be required for food, animals and animal feed by law.
“If so, a physical border seems unavoidable,” he said. “And, since the border winds through over 300 miles of countryside, this may require a number of border posts to be erected.
“No doubt many goods can be cleared in some invisible, frictionless way – as yet unidentified – but not all. Some, such as animals and animal feed, which cross the border every hour of every day, will probably have to be examined for health and safety reasons in order to avoid infections and diseases.”
His comments in a speech at the Irish embassy in London on Thursday come weeks after he said the British people had “every right” to a second referendum arguing that voters were misled by campaigners.
Major warned that border checks had the potential to “divide communities that are now united” and provide “a focus for protests from fringe groups – either unionists or nationalists”.
He said politicians should be aware of the consequence of that and ask themselves if there were protests would the border need to be protected. “Would security be brought in?” If so, would that prompt “a downward spiral towards violence”?
“I don’t wish to overplay this but, at the very least, it increases the potential for conflict,” he added.
Major was the first prime minister to normalise Anglo-Irish relations but his interventions have lead to virulent attacks by Brexiters.
Major said in his speech that when he and Tony Blair went to Ireland to warn about the implications of Brexit for the whole island he expected opposition from Brexit supporters. “What we didn’t expect was a complete failure of understanding about its impact by leading Brexiters.
“I don’t believe for a moment that the British government wishes to hurt Ireland: far from it. I simply observe that preventing collateral damage to Irish interests doesn’t appear to feature prominently in the concerns of those who press for Brexit.”
Major conceded that the customs union does have downsides but that these are “heavily exaggerated”.
He said the Irish border question was “much more than a political squabble” between Brexiters and remainers, rather it was “a battle for the future direction of a policy that will affect all the people of the UK and the Republic of Ireland”.