The government has named Karen Pierce as the new ambassador to the US.
Ms Pierce – who is currently the UK’s permanent representative to the United Nations – will become the first woman in the post.
She replaces Sir Kim Darroch, who resigned in 2019 after leaked emails revealed he had called President Donald Trump’s administration “clumsy and inept”.
Ms Pierce joined the Foreign and Commonwealth Office (FCO) in 1981.
She held posts in countries around the world, including Japan, Switzerland and the US, before becoming the British Ambassador in Afghanistan between 2015 and 2016.
She then returned to London as the FCO’s chief operation officer until her posting at the UN.
The UK has not had an ambassador in the US since Sir Kim resigned in July after the emails – dating from 2017 – were leaked.
In his resignation letter, Sir Kim said the situation made it “impossible for me to carry out my role as I would like”.
President Trump branded him “a very stupid guy” and said he would no longer work with the diplomat.
The row erupted in the middle of the Tory leadership contest, with the now-Prime Minister Boris Johnson heavily criticised for not fully supporting Sir Kim.