Mr Putin’s war against Ukraine inadvertently led to an end to the hitherto intractable conflict between Azerbaijan and Armenia, which is now struggling to break free of Russia’s grip and make peace with Turkey.

Ukrainian President Volodymyr Zelensky, speaking at the start of the two-day Ukraine Recovery Conference, is urging politicians and businesses to boost investments in defence, warning Russian President Vladimir Putin was not interested in peace.

Flattery and pressure — coupled with President Trump’s growing dissatisfaction with President Vladimir V. Putin — have helped build momentum for new economic punishments.

US Secretary of State Marco Rubio voiced frustration over stalled Ukraine ceasefire talks after meeting Russia’s Sergey Lavrov at the ASEAN summit. He plans to brief President Trump, who has also criticized Putin’s ongoing aggression.

President Donald Trump, appearing fed up, accused the Russian President Vladimir Putin of spouting “bullshit” and said he was “very strongly” considering supporting a punishing sanctions bill to bring Russia to heel.

Kyiv was the main target of an hourslong assault that killed at least two people, officials said. The barrage came hours before the top American and Russian diplomats were expected to meet.

President Donald Trump continued to express his displeasure with Russian President Vladimir Putin on July 8 and said he was open to sanctioning him.