Former British Prime Minister John Major arrives to give evidence to the Leveson Inquiry into the ethics and practices of the media, at the High Court in London June 12, 2012. REUTERS/Olivia Harris (BRITAIN - Tags: POLITICS CRIME LAW MEDIA SOCIETY) - RTR33GZ9

John Major has urged Theresa May to pull out of a deal for the Democratic Unionist Party to prop her up in power, warning it risks a return of violence in Northern Ireland.
In a dramatic intervention, the former Conservative prime minister warned the peace process is “fragile” and could fall part if the British government is no longer seen as “impartial”.
“People shouldn’t regard it as a given. It’s not certain, it’s under stress, it’s fragile,” Sir John said.
He urged the Prime Minister to pursue a minority government without “the baggage” of an agreement with the DUP.
And he highlighted the danger of “hard men still there, lurking in the corners of communities deciding they wish to return to some sort of violence”.
“We need to do everything we conceivably can to ensure that doesn’t happen – and that does require an impartial British government,” Sir John said.
While peace in Northern Ireland was …