With a new leader comes several new ministers, and Britain's new Prime Minister Andy Burnham is replacing large parts of the government of his predecessor, Keir Starmer.
The new Chancellor of the Exchequer, succeeding Rachel Reeves, will be former Defence Secretary John Healey, who left the Starmer government in June in protest at insufficient defence spending. He will now be tasked with finding the missing money to increase the military budget within NATO limits.
Former Labour leader Ed Miliband had been rumoured to be in the running for the post, but he will instead become Foreign Secretary - an appointment that could anger the US.
Officials in President Donald Trump's administration warned earlier in July that it would be a "mistake" to appoint Miliband as finance minister, according to British media . The reason is his opposition to new drilling for oil and gas in the North Sea, and that Miliband and Trump have completely different views on wind power and renewable energy.
Miliband, who takes over from Yvette Cooper, was party leader from 2010 to 2015, and was Minister for Energy Security and Net Zero Emissions in Keir Starmer's government.
"The greatest honour of my life," Miliband said, according to the BBC, on his way out of his meeting with Burnham on Monday evening.
Burnham is appointing his former rival for the party leadership, also former Health Minister Wes Streeting, as Minister of Defence.
On Monday afternoon, there were reports of ministers leaving the government, according to the BBC, at least eight ministers. All replacements have not yet been officially appointed. The most important position that remains unchanged is the post of Minister of the Interior, where Shabana Mahmood will remain.
