Russia may look to launch an assault on a European country far sooner than expected, one of Britain’s most experienced military figures has warned
A senior Nato official who was once Britainâs top military figure in the alliance has issued the starkest warning yet that Russia may look to launch an attack on Europe within the next three years.
On Monday, Nato Secretary General Mark Rutte said that Vladimir Putin may look to launch an attack on the alliance within five years. However, speaking to The i Paper, Sir James Everard, Natoâs former deputy supreme allied commander Europe, said he feared the Russian leader might move earlier.
Sir James, a current senior adviser to the alliance, went further than Rutte and said: âIf Russia gets unstoppable momentum in Ukraine why wait three to five years as Nato grows stronger? For a land grab Putin could go early.â
Asked why Rutte indicated Russiaâs readiness to attack would be further down the line, Sir James who advises Nato commanders as they prepare for operations, replied: âYou can apply a timeline for a Russian attack based on any number of metrics.

âI think the Nato Secretary General has pitched his three-to-five-year timeline perfectly: not distant because it would be ignored, not immediate because this makes life too difficult for Western leaders, but close enough that we have to do something now because a Russian threat is very real.â
In his speech, Rutte outlined the need to âmake our alliance stronger, fairer and more lethalâ in order to defend against Russiaâs capacity to rearm and threaten alliance countries in the near future.
He said: âLetâs not kid ourselves, we are all on the Eastern flank now. The new generation of Russian missiles travel at many times the speed of sound. The distance between European capitals is only a matter of minutes. There is no longer East or West â there is just Nato.â
Dmitry Peskov, the Kremlin spokesperson, responded to his remarks by saying that Nato âis demonstrating itself as an instrument of aggression and confrontationâ.

Jamie Shea, a former deputy assistant secretary general at Nato, said military planning must look at the âextreme endâ of Russiaâs potential next moves, but warned this might not come in the form of an all out military attack.
He told The i Paper: âItâs good like any military plan to take the extreme end of the scenario but youâve got to look at capabilities; how is the Russian army going to reconstitute, how fast? What type of Russian army will emerge from Ukraine? A Soviet army or something different?

Shea â whose role at Nato focused on emerging security challenges â said that Nato must develop capabilities so it can ânip hybrid operations in the budâ before Russia can use them to seize parts of neighboring countries, such as Lithuania, Estonia or Finland.
He said: âI think Nato has to pay just as much attention to its quick-reaction capabilities to because Putin will probe bit by bit, salami-style, than launch a big attack out of the blue.
âHe would try to launch some sort of hybrid activity by seizing Narva [in eastern Estonia, next to the border with Russia] disguised as a popular uprising, and see how Nato reacts.â
John Foreman, the UKâs defence attachĂŠ to Moscow until 2022, said he understood the comments that Putin might attack Nato, but did not think the Russian leader was poised to launch an immediate assault against the alliance.
He said: âI donât believe Russia wants to attack the west or has the capability of doing so for a decade.â
Tensions between Nato and Moscow have been rapidly increasing since Russiaâs full-scale invasion of Ukraine in 2022.

Recently, Putin has deployed intelligence specialists and experienced combat units from Ukraine to the Finnish border. The move forced Britain to send military officials to support a Nato mission in the country amid fears of escalation.
The warnings by experts come just weeks before a Nato summit in The Hague where Donald Trump is expected to press European countries to commit to greater defence spending.
Joe Devanny, from the Department of War Studies at Kingâs College London, said: âTo state the obvious, there is a difference between Putin being âreadyâ to use military force against Nato â whether in five years or even sooner â and his actually deciding to do it. Part of that difference is the deterrent effect of Nato.â
Britain has promised to increase defence spending to 2.5 per cent of GDP by 2027, with a goal of increasing that to 3.5 per cent within a decade. It follows the Governmentâs Strategic Defence Review, published earlier this month, which committed the UK to taking the lead in Nato to increase European security.
After a meeting of Nato defence ministers in Brussels last week, US Defence Secretary Pete Hegseth said he was encouraged by the discussion and that there was âalmost near consensusâ on a 5 per cent commitment from members.
Echoing that, Rutte said: âAt the summit in The Hague, I expect allied leaders will agree to spend 5 per cent of GDP on defence. It will be a Nato-wide commitment. And a defining moment for the allianceâ.
The Ministry of Defence was approached for a comment.