These "talks," organized at Berlin's initiative in several thematic groups, will focus on "preparations for possible peace negotiations," Stefan Kornelius said in a statement.

Matters "related to territorial claims and security guarantees," as well as possible "additional actions" to "put pressure on Russia" will also be on the agenda.

Trump says he will ask Putin to end his invasion of Ukraine

This Monday, the EU called an emergency meeting of its foreign ministers to try to influence the negotiations planned for Friday in Alaska between Trump and Putin on the war in Ukraine, which have raised fears of an agreement detrimental to Kyiv.

The Europeans have intensified their contacts and have worked to form a united front in support of Ukraine since the announcement of the summit between the two world leaders.

Trump declared this Monday that he hopes to have a "constructive conversation" with his Russian counterpart "I'm going to speak to Vladimir Putin and I will tell him: 'You have to end this war,'" he declared at a press conference at the White House.

He also expressed his displeasure with Zelensky for ruling out territorial concessions to Russia.