FILE PHOTO: Rescuers work at the site where a hospital was damaged during a Russian air strike, amid Russia's attack on Ukraine, in Kharkiv, Ukraine July 25, 2025. REUTERS/Sofiia Gatilova/File Photo
Russia's President Vladimir Putin and U.S. President Donald Trump walk during the G20 leaders summit in Osaka, Japan, June 28, 2019. REUTERS/Kevin Lamarque/File Photo

By Sarah Marsh and Lili Bayer

BERLIN/BRUSSELS (Reuters) -European leaders and Ukraine's Volodymyr Zelenskiy will speak to U.S. President Donald Trump this week ahead of his summit with Russian leader Vladimir Putin, amid fears Washington may dictate unfavourable peace terms to Ukraine.

Trump announced last week he would meet Putin on Friday in Alaska to negotiate an end to the 3-1/2-year war, which began with Russia's full-scale invasion of its neighbour.

Ukraine and its European allies fear that Trump, keen to claim credit for making peace and also hoping to seal lucrative joint business deals with Moscow, could align with Putin to cut a deal that would be deeply disadvantageous to Kyiv.

Germany said it was convening a series of top-level video conferences on Wednesday to prepare for the summit including one at 1500 CET (1300 GMT) between European leaders, Zelenskiy, Trump and U.S. Vice President JD Vance.

It will be the first time Zelenskiy and Trump have spoken since the Alaska summit was announced.

European leaders and EU and NATO officials would coordinate their approach beforehand, a German government spokesperson said.

Zelenskiy said on Monday that concessions to Moscow would not persuade it to stop fighting in Ukraine and that there was a need to ramp up pressure on the Kremlin.

"Russia refuses to stop the killings, and therefore must not receive any rewards or benefits," Zelenskiy wrote on X.

He later held separate phone calls with the leaders of India and Saudi Arabia - which both have cordial ties with Moscow - in an effort to bolster international support for Kyiv's position ahead of the Trump-Putin talks.

'WE WILL NOT REWARD AGGRESSION'

European Union foreign ministers discussed their support for Kyiv and the upcoming meeting in a video conference on Monday afternoon.

"Transatlantic unity, support to Ukraine and pressure on Russia is how we will end this war and prevent future Russian aggression in Europe," EU foreign policy chief Kaja Kallas wrote on X following the discussion on Ukraine.

"EU Foreign Ministers today expressed support for US steps that will lead to a just peace," Kallas wrote.

"Meanwhile, we work on more sanctions against Russia, more military support for Ukraine and more support for Ukraine’s budgetary needs and accession process to join the EU," she added.

Ukrainian Foreign Minister Andrii Sybiha, who participated in the video conference, said in a post on X after the talks that "Russia has been imitating the peace process, twisting, manipulating, and throwing dust in our eyes".

"No rewards, gifts or appeasement of the aggressor. Every concession invites further aggression," he said.

Italy's Foreign Minister Antonio Tajani told his counterparts on the call that "we support President Trump’s efforts and we see some progress," according to Italian officials.

"Any diplomatic solution must protect Ukraine’s sovereignty, its territorial integrity, and its freedom to choose its own future, including its path toward the EU," Tajani said.

British Prime Minister Keir Starmer's spokesperson said London supported Trump's efforts to end the war in Ukraine but believed Kyiv must be involved in any settlement on ending the fighting.

"We will never trust President Putin as far as you can throw him, but we will support Ukraine and President Trump and European nations as we enter these negotiations," Starmer's spokesperson told reporters.

"Any peace must be built with Ukraine, not imposed upon it, and we will not reward aggression or compromise sovereignty."

The Alaska meeting comes as Trump has hardened his stance towards Moscow, agreeing to allow additional U.S. weapons to reach Ukraine and threatening tariffs against buyers of Russian oil.

Even so, the prospect of Trump hosting Putin - on U.S. soil, in what will be the first meeting between leaders of the United States and Russia since 2021 - has revived fears that he might agree to a deal that forces big concessions from Kyiv or weakens European security.

Trump has said any peace deal would involve "some swapping of territories to the betterment of both" Russia and Ukraine, prompting consternation in Kyiv and European capitals.

"Regarding territorial issues, the Russian position is framed as a territorial swap, but it appears as a rather one-sided swap," a European Commission official said on Sunday.

Russia currently occupies about a fifth of Ukrainian territory, while Ukraine holds barely any Russian territory.

European leaders have underscored their commitment to the idea that international borders cannot be changed by force, fearing any deal forced on Kyiv could create a dangerous precedent.

"The most robust security guarantee would be that there are no limitations on Ukrainian armed forces and third countries' support to Ukraine," the Commission official said.

(Reporting by Sarah Marsh in Berlin, Lili Bayer in Brussels, Angelo Amante in Rome and Yuliia Dysa in Kyiv; Writing by Gareth Jones; Editing by Hugh Lawson and Alex Richardson)