The country's most crucial supporters during the time of war.
.
.
Among the guests welcomed at the train station were Ukrainian foreign minister Andrii Yermak and the president's chief of staff Andrii Yermak.
In a post on X, Ms von der Leyen stated that Europe was in Kyiv "because Ukraine is in Europe".
"It's not just Ukraine's future that's on the line, but Europe's as well," she wrote.
In the face of concerns that the US might withdraw its backing.
In the latest indication of Europe's attempts to revise its approach to Ukraine in response to Trump's actions, Costa announced that he would convene an emergency summit of the 27 EU leaders in Brussels on March 6, with Ukraine being the main point of discussion.
"We are experiencing a pivotal moment for Ukraine and European security," Costa said in a post on social media.
The US leader is working to fulfill his campaign pledge of ending the war swiftly, but his approach has raised concerns among many in Ukraine and Europe, as they feel it is too accommodating towards Russia and its president, Vladimir Putin.
Russia's foreign ministry announced on Saturday that arrangements are being made for a face-to-face meeting between Trump and Putin, and US officials have stated that they have agreed with Moscow to re-establish diplomatic ties and restart economic cooperation.
On Sunday, Russia's Deputy Foreign Minister Sergei Ryabkov informed the state-run Tass news agency that Moscow and Washington would continue their bilateral negotiations at the end of next week. He also stated that 'quite a lot' of communication was taking place between the Russian and American sides.
Leaders across the EU, fearing that Mr. Trump's approach to Ukraine could lead to an unfavorable settlement for Kyiv and that they, as some of Ukraine's most important supporters, would be left out of the peace negotiation process, have quickly taken steps to establish their own response to the rapidly changing situation.
The EU's top diplomat stated on Monday that the US cannot finalize any peace agreement to end the war with Mr. Putin without Ukraine or Europe's participation being involved.
Estonian Prime Minister Kaja Kallas pointed out what she believed were pro-Russian stances being taken by the Trump administration.
'You can talk to Putin about anything you want, but when it comes to Europe or Ukraine, then Europe and Ukraine also have to agree on this deal,' Ms. Kallas said to reporters in Brussels, where she is chairing a meeting of EU foreign ministers.
Ms Kallas is set to travel to Washington on Tuesday for discussions with US Secretary of State Marco Rubio.
She stated that the messages from the US are heavily influenced by the Russian narrative, implying that the US administration is acting in Russia's or Ukraine's Western allies' interests.
Ms Kallas dismissed Mr Trump's earlier claim that Mr Zelensky was a dictator for failing to hold elections after his term expired last year, saying, 'Russia hasn't held elections in 25 years, neither has Putin.'
Ukraine's law forbids elections from taking place when martial law is in effect, and President Zelensky stated as recently as Sunday that once martial law is lifted, "there will be elections and people will make their choice."
Read more