Former British Prime Minister David Cameron made a shock return to high office on Monday, becoming foreign secretary in a major shakeup of the Conservative government that also saw the firing of divisive Home Secretary Suella Braverman.

Cameron, who led the U.K. government between 2010 and 2016, was appointed by Prime Minister Rishi Sunak in a Cabinet shuffle in which he sacked Braverman, a divisive figure who drew anger for accusing police of being too lenient with pro-Palestinian protesters.

She was replaced by James Cleverly, who had been foreign secretary.

Cameron’s appointment came as a surprise to seasoned politics-watchers.

It’s rare for a non-lawmaker to take a senior government post, and it has been decades since a former prime minister held a Cabinet job.

The government said Cameron will be appointed to Parliament’s unelected upper chamber, the House of Lords.

The last foreign secretary to serve in the Lords, rather than the elected House of Commons, was Peter Carrington, who was part of Prime Minister Margaret Thatcher’s government in the 1980s.

Cameron said Britain was “facing a daunting set of international challenges, including the war in Ukraine and the crisis in the Middle East.”

“While I have been out of front-line politics for the last seven years, I hope that my experience — as Conservative leader for 11 years and prime minister for six — will assist me in helping the prime minister to meet these vital challenges,” he said in a statement.

His appointment brings back to government a leader brought down by Britain’s decision to leave the European Union.

Cameron called the 2016 EU membership referendum, confident the country would vote to stay in the bloc.

He resigned the day after voters opted to leave.

Sunak was a strong backer of the winning “leave” side in the referendum.

He resigned the day after voters opted to leave.

Cameron’s return, and Braverman’s sacking, are likely to infuriate the Conservative Party’s right wing and inflame tensions in the party that Sunak has sought to soothe.

Prominent right-wing lawmaker Jacob Rees-Mogg said sacking Braverman was “a mistake because Suella understood what the British voter thought and was trying to do something about it.”

Sunak had been under growing pressure to fire Braverman — a hard-liner popular with the authoritarian wing of the governing Conservative Party — from one of the most senior jobs in government, responsible for handling immigration and policing.

In a highly unusual attack on the police last week, Braverman said London’s police force was ignoring lawbreaking by “pro-Palestinian mobs.”

She described demonstrators calling for a cease-fire in Gaza as “hate marchers.”

On Saturday, far-right protesters scuffled with police and tried to confront a large pro-Palestinian march by hundreds of thousands through the streets of London.

Critics accused Braverman of helping to inflame tensions.