One big success on that front this week was US President Trump's decision to impose sanctions on Russia's top oil producers, Lukoil and Rosneft. Putin has admitted they may have "certain consequences", even if he claims they won't hit the Russian economy.

Deal collapses to hand Kyiv €140bn in frozen Russian assets - Decision on whether to support Ukraine with a huge loan is pushed to December

The Kremlin may have convinced itself that US President Donald Trump didn’t have the stomach to apply real pressure on Moscow to end the brutal conflict in Ukraine.

A "coalition of the willing" meeting in London seeks to increase pressure on Russia to end its war in Ukraine.

LONDON (AP) — Ukrainian President Volodymyr Zelenskyy on Friday urged the United States to expand sanctions on Russian oil from two companies to the whole sector, and appealed for long-range missiles to hit back at Russia.

The drone and missile attacks on Ukraine came as the US president put on hold his plans for an imminent summit in Budapest.

Russia launched a large-scale air attack on Ukraine early Wednesday, causing power outages across most of the country, setting homes ablaze and killing at least six people, including a six-month-old baby,

Ukrainian President Volodymyr Zelenskiy hailed "very important" new U.S. and European Union energy sanctions on Russia on Thursday, but said more pressure would be needed on Moscow to secure a ceasefire in the war.