After months of speculation, it is now just days until the country finds out who its new prime minister is.
The Tory leadership contest sparked by Boris Johnson's resignation in July is drawing to an end, with voting from up to around 200,000 Conservative party members closing today.
The contest has seen 11 hopefuls whittled down to just two candidates - Liz Truss and Rishi Sunak - with the winner and next Prime Minister set to be announced on Monday, 5 September, becoming Britain's fourth PM in six years.
When is the final Tory leadership vote?
The ballot for the Tory leadership vote closes at 5pm on Friday 2 September.
According to the Conservative Party website, any ballots received after that time will not be counted.
The eight-week contest has seen a total of 12 official hustings events as both candidates toured the country hoping to garner support.
Voting has been open to party members who have been members for at least three months immediately prior to the close of the ballot, the website states.
Speculation on exactly how many members that involves can vary from 160,000 to 200,000 - meaning the next British Prime Minister is chosen by around 0.29% of the population.
Who will win the Tory leadership race?
Current foreign secretary Truss is the clear favourite, though some polls have suggested the gap between her and Sunak is narrowing.
On Friday, Truss remained the bookies' favourite to become the next Tory leader and prime minister.
She has the backing of several key figures, including current Chancellor Nadhim Zahawi, and has been consistently ahead in polling of the Tory Party membership - though one health warning is that it is notoriously difficult to poll party membership as there is no database for experts to utilise.
When will the new prime minister be announced?
A letter to Tory MPs and peers from the party's co-chairman Andrew Stephenson said the result would be announced in a "central Westminster venue", with the location announced to those attending no more than 48 hours in advance for security reasons.
The day coincides with the return of MPs to the Commons after the summer recess.
Whoever is the new PM will not take over from Boris Johnson until the following day. They will also have to travel to Balmoral in Scotland for their audience with the Queen before formally taking over in Downing Street.
Watch: Queen will appoint new PM at Balmoral
The Queen usually sees an incoming leader at Buckingham Palace, but for the first time will receive her new PM - the 15th during her reign - at Balmoral due to an "episodic mobility issue".
Outgoing incumbent Johnson will also have to travel 500 miles from London to the Queen's Aberdeenshire estate on Tuesday before he steps down.
He is expected to fly to Scotland early on Tuesday morning, probably after delivering a final address outside Number 10.
Once the formalities are complete on Tuesday, whoever succeeds Johnson will then clash with Labour leader Sir Keir Starmer at their first Prime Minister's Questions on Wednesday, 7 September.