Outgoing British Prime Minister Boris Johnson gives a final speech outside 10 Downing Street. Photo: AFP
Outgoing British Prime Minister Boris Johnson has urged Conservatives to get behind his successor Liz Truss during a "tough time", in his farewell speech.
Johnson is to meet the Queen at Balmoral Castle in Scotland, where he will tender his resignation as PM.
He will hand power to Truss, who will be formally appointed by the British monarch before making her first speech as prime minister.
Truss, the UK's third female prime minister, will then pick her cabinet.
Her victory in the Tory leadership contest on Monday marked the end of Johnson's turbulent premiership, less than three years after the Conservatives won a landslide in the 2019 general election.
In the face of a mounting economic crisis, Johnson's successor has promised immediate action to deal with soaring energy prices, as well as tax cuts aimed at staving off a recession.
Her plan, due on Thursday, is expected to include a freeze on energy bills but the details of that policy are yet to be announced.
Simon Clarke, who backed Truss for the leadership and is tipped to become levelling up secretary, told the BBC he was anticipating "a major intervention" on energy bills.
He said energy "will be the government's most immediate priority upon entering office" and insisted the commitments Truss made during the campaign on tax "still absolutely stand".
In his speech, Johnson alluded to the ominous challenges Truss will inherit when she takes office, acknowledging that this was "a tough time for the economy".
"This is a tough time for families up and down the country," Johnson said in front of No 10 Downing Street. "We can and we will get through it and we will come out stronger the other side."
In a pointed plea to his Conservative colleagues following a fractious party leadership race, Johnson said "it's time for politics to be over, folks".
New British Prime Minister Liz Truss. Photo: AFP
"It's time for us all to get behind Liz Truss and her team and her programme and deliver for the people of this country," he said. "That's what this country wants, that's what they need, and that's what they deserve."
Paying tribute to his colleagues in government, Johnson said they were the people who "got Brexit done", delivered "the fastest vaccine rollout in Europe", and "organised those prompt supply of weapons to Ukraine".
Reflecting on the future of his career, Johnson compared himself to "one of those booster rockets" that "has fulfilled its function".
"I'll be gently re-entering the atmosphere and splashing down invisibly in some remote and obscure corner of the Pacific," he said.
He then likened himself to Cincinnatus, a Roman statesman and military leader who battled against an invasion before returning to his farm.
Some classics scholars pointed out Cincinnatus came out of retirement for a second term as leader of Rome.
Johnson has not said publicly said what he will do after leaving office but there is speculation that he will remain as an MP for his Uxbridge and South Ruislip constituency.
Johnson's premiership was marred by a string of controversies that gradually cranked up political pressure and discontent within his own party.
Boris and Carrie Johnson bid goodbye to friends and supporters in Downing Street. Photo: AFP
In June this year, Johnson won a vote of no confidence in his leadership, but even then many Tory MPs remained resolved to turf him out of office.
His downfall as Tory leader and prime minister was sealed following a ministerial mutiny in July, triggered by the dramatic resignation of then-Chancellor Rishi Sunak and health secretary Sajid Javid.
Johnson resisted calls to quit - including from his newly appointed Chancellor Nadhim Zahawi - for 48 hours, until it became clear that he had lost the confidence of his party and his position was untenable.
Once Johnson resigned as Tory leader, party members took part in a ballot to replace him and elected Truss, who beat her rival Sunak with 57 percent of the vote.
- BBC