U.K. Foreign Secretary David Lammy accused Russian President Vladimir Putin of "bluster" Sunday over his warning that letting Ukraine use long-range weapons to strike inside Russia would put NATO "at war" with Moscow.
Tensions between Russia and the West over the conflict reached dire levels this week as U.S. President Joe Biden and British Prime Minister Keir Starmer met at the White House to discuss whether to ease rules on Kyiv's use of western-supplied weaponry.
"I think that what Putin's doing is throwing dust up into the air," Lammy told the BBC.
"There's a lot of bluster. That's his modus operandi. He threatens about tanks, he threatens about missiles, he threatens about nuclear weapons."
Ukrainian President Volodymyr Zelenskyy has been asking for permission to use British Storm Shadow missiles and U.S.-made ATACMS missiles to hit targets deeper inside Russia for months.
Biden and Starmer delayed a decision on the move during their meeting on Friday.
It came after Putin warned that green-lighting use of the weapons "would mean that NATO countries, the U.S., European countries, are at war with Russia."
"If that's the case, then taking into account the change of nature of the conflict, we will take the appropriate decisions based on the threats that we will face," he added.
The Russian leader has long warned Western countries that they risk provoking a nuclear war over their support for Ukraine.
"We cannot be blown off course by an imperialist fascist, effectively, that wants to move into countries willy nilly," said Lammy.
"If we let him with Ukraine, believe me, he will not stop there."
Lammy said that talks between Starmer, Biden and Zelensky over the use of the missiles would continue at the United Nations General Assembly gathering in New York later this month.
