Russia’s Foreign Ministry said it does not see the deployment of NATO troops in Ukraine as a viable solution to the conflict and condemned recent U.K. statements on the issue as provocative.

"At a time when there is a genuine push for a comprehensive, fair, and lasting resolution to the conflict around Ukraine, including addressing its root causes, statements continue to emerge from London that not only contradict the efforts of Moscow and Washington, but also appear aimed at undermining them," the ministry said.

Starmer, along with other NATO leaders, has said Ukraine is on an "irreversible path" to membership of the security alliance.

"Russia cannot have a veto against Ukraine's pathway to the EU or NATO," the prime minister's official spokesman said on Monday.

Asked if Donald Trump could have a veto, the spokesman repeated that "our position on Ukraine and NATO hasn't changed" and that Ukraine is on "irreversible path" to membership.