Plaid Cymru Cymru leader Rhun ap Iorwerth accepted there was a case for considering defence spending “as the international context changes” but “as conflict, climate change, and extreme poverty become increasingly interconnected, offering people a lifeline in some of the most destitute conditions on earth is critical”, he said.

“Collective action of this kind can help promote peace internationally.

“First Trump bows to Putin, now Starmer bows to Trump. This dangerous domino effect will make the world even more unstable and we have a moral duty to condemn it.”

But Dame Nia stressed the United Kingdom now found itself in an “unprecedented moment, I think, if you look at the world geopolitical situation”.

“We have been facing not only a country that’s been invaded in Europe, Ukraine, as we know for the past three years, we’ve also been facing many other types of attacks,” she told Radio Wales.

“We had the Skripal attack on our own soil [the failed nerve agent attack on Sergei Skripal in Salisbury], we’ve had many unattributable attacks like the [undersea] cables being cut, internet warfare.

“We really have to make sure that we’re in a position to deal with all of these threats.

“What I can say is that we are absolutely committed to getting back to that 0.7% of our national income to be spent on development.”

Labour promised in its manifesto for last year’s UK general election to return aid spending to 0.7% of national income “as soon as fiscal circumstances allow”.

Additional reporting by Bethan James