Keir Starmer told Britons they face a 'grim reality' of a growing threat of nuclear annihilation at the hands of Vladimir Putin's Russia today.
The Prime Minister faced MPs today after attending the Nato summit this week and the G7 leaders' meeting last week, where the war in Ukraine was one of the main topics of discussion.
Speaking in the Commons for the first time in more than two weeks he urged the US and other UK 'partners' to 'step up the pressure now, with more sanctions and more military support to bring Russia to the table to agree an unconditional ceasefire'.
It came after the UK's new national security strategy warned that the nation must 'actively prepare' for a direct attack on British soil in a potential 'wartime scenario' for the first time in many years.
It highlighted Russian cyber attacks and sabotage against the UK, Iranian hostile activity on British soil, and other adversaries 'laying the foundations for future conflict'.
