“And everywhere I go, from the factory floor at Jaguar Land Rover to meeting submariners aboard a nuclear-powered submarine, I’m reminded of why that is the right approach.

“Because the decisions we make in government, whether at home or abroad, have profound impacts on the day-to-day lives of working people.

“And in these dangerous times, I am determined to forge a unique path to secure and renew Britain in an era of global instability.”

If achieved, it would be Sir Keir’s fourth major trade deal following the US, India and EU.

The official visit marks a further warming of relations between London and Ottawa, following King Charles’s visit last month for the state opening of Parliament.

His presence was seen as a major slap down of Donald Trump, who has taken to branding Canada as ‘America’s 51st state’.

The President’s actions also sparked a jaw-dropping April general election, in which the front-runner Conservative went from a 20-point lead to losing his seat in the space of four months, as Mark Carney capitalised on anger at the US president.

After meeting with Mr Carney Sir Keir will jet to Calgary for the annual G7 summit.

While the meeting had been intended to discuss security, the global economy, and Ukraine, this week’s explosive developments in the Middle East now threaten to overshadow events.

The Prime Minister will use the summit to urge restraint and de-escalation in the region, pushing for diplomatic solutions instead.

Speaking on the plane to Canada, Sir Keir said there will now be “intense discussions” at the G7, however couldn’t guarantee a unified resolution at the end of the high-stakes summit.

He told reporters: “In relation to what might happen at the end of the G7, I think there’s going to be so much intense discussion before we get there I will probably have to come back to you on that, because the G7 happens to be a good occasion, obviously, to have those face to face discussions.”

“But those discussions are going on anyway. That would have gone on in any event, and I’m expected to have a series of those discussions today into tomorrow. It is the number one thing that I do, as you would expect.”

He hinted that he is optimistic about a trade deal with Mark Carney, whom he has “known [for] a long time”.

“Some months ago I said the world is changing on trade and the economy, just as it is changing on defence and security and I think that means we need to be more securing our base at home and turbo charging what we are doing on the cost of living and at the same time reducing trade barriers with other countries.”

“I’ve been expressing that in my discussions with Mark Carney and he is in the same position.”

He will also press to keep up pressure on Vladimir Putin, in a week which marked one million Russian losses since the war in Ukraine began, a figure branded “staggering” by the Prime Minister.

Donald Trump will attended, though No. 10 is yet to confirm whether he will meet with Sir Keir.

Ukrainian President Volodymyr Zelenskyy has also been invited to attend by Mr Carney, as have Mexico, India, and Saudi Arabia, the latter of whom’s Crown Prince will not be attending.