US President Donald Trump says he will host several European leaders in Washington next week to discuss urgent steps to end the war in Ukraine, following Russia’s largest aerial assault since the conflict began.

Over the weekend, Russia fired more than 800 drones across Ukraine, striking Kyiv’s central government building for the first time since the full-scale invasion in 2022. The attack underscored Moscow’s escalation and prompted renewed calls for tougher international action.

Trump confirmed he will meet European counterparts “individually” on Monday and Tuesday, while also preparing for a direct conversation with Russian President Vladimir Putin. He hinted at a “new phase” of sanctions that could expand penalties against Moscow.

“I’m not happy with the whole situation,” Trump said, adding that Washington is weighing secondary sanctions — measures that would penalize countries still trading with Russia.

Ukrainian President Volodymyr Zelensky welcomed the idea, calling it “the right move.” In an interview with ABC News, Zelensky criticized European nations that continue buying Russian energy. “We have to stop buying any kind of energy from Russia. We can’t have any deals if we want to stop them,” he said.

Since the invasion, Russia has earned nearly $1 trillion from oil and gas exports, according to the Centre for Research on Energy and Clean Air. China and India remain its biggest customers, despite international pressure. The European Union has pledged to fully cut Russian energy imports by 2027, but Zelensky is urging faster action.

The US has already slapped a 50% tariff on Indian goods in response to New Delhi’s continued oil purchases from Moscow, a move India says clashes with its economic priorities. Meanwhile, Russia is deepening ties with China and has pledged to ramp up gas supplies to Beijing.

Adding to the complexity, the OPEC+ coalition — which includes Russia — recently agreed to raise oil production, a decision that could lower global prices but also make it harder to restrict Moscow’s revenues.

US Treasury Secretary Scott Bessent echoed Zelensky’s push for tougher action, stressing the urgency of aligning Europe with US sanctions. “If the EU joins us, the Russian economy will be in total collapse and that will bring President Putin to the table,” he said.

“We are in a race now,” Bessent added, “between how long the Ukrainian military can hold out, and how long the Russian economy can survive.”