Oct. 24 (UPI) -- European leaders were set to arrive in London on Friday morning for a Ukraine summit where British Prime Minister Keir Starmer was expected to urge the continent to ramp up "gifting" of long-range missiles to Kyiv.

The meeting to explore ways to increase pressure on Russian President Vladimir Putin will be attended by Ukrainian President Volodymyr Zelensky, Danish Prime Minister Mette Frederiksen, Dutch Prime Minister Dick Schoof and NATO Secretary General Mark Rutte, Downing Street said in a news release.

No. 10 said around 20 other global leaders were expected to attend the 'Coalition of the Willing' meeting virtually.

Starmer said the gathering was aimed at bolstering Ukraine while crippling Russia's war machine following Putin's sabotaging of U.S. President Donald Trump's renewed diplomatic initiative, which he said demonstrated again Putin was not serious about ending the illegal war he launched in 2022.

The prime minister said he would push for Russian oil and gas to be taken off the market, complete the job of redirecting frozen Russian assets to fund Ukraine's defense and boost its long-range ability to strike Russia's energy infrastructure.