Downing Street

The bloc had demanded a response to its raft of infringement proceedings over the UK's failure to comply with the post-Brexit rules before the end of Thursday..

Ms Truss will not enjoy the usual 'honeymoon' period of prime ministerial work and is under pressure to hit the ground running to tackle the economic crisis.

As Boris Johnson's premiership officially comes to an end to make way for Liz Truss, here are the highs and lows that led him to this point.