Russian president, Vladimir Putin will face a “huge cost” if he dares attack any nations outside Ukraine, the head of the Royal Navy, Admiral Sir Ben Key has said.

In his first interview as First Sea Lord, Admiral Sir Ben Key said it was imperative that NATO worked to “contain” the invasion of Ukraine and did not allow it to “accelerate away from us”. 

“The lessons of history would say that we are in a particularly fragile moment right now, which is why it’s really important that whilst the support we are giving to Ukraine at the moment is to enable them, we have to show in robust and resilient posture across the rest of the contact line with Russia ... so that President Putin understands this is not something that he can broaden without huge cost to him and Russia.”

Speaking to the Telegraph, he accused Putin of an “egregious wrong” against Ukraine, urging the UK to continue to support Volodymyr Zelensky, the Ukrainian president, to help provide his fighters with “the wherewithal to defend their territory, their homeland and their people”. 

He said while the hope was that Putin “chooses to desist”, that outcome feels “a long way away at the moment”.