"Ukraine and all allies are ready for a complete unconditional ceasefire on land, in the air, and at sea for at least 30 days, starting as early as Monday," Ukraine's Foreign Minister Andrii Sybiha wrote.
U.S. President Donald Trump has acknowledged in private that Russia is difficult to negotiate with because they "want the whole thing," referring to Ukraine, the WSJ reported, citing sources familiar with the comments.
The visit marks Merz’s first trip to Ukraine, and the first time all four leaders have travelled there together.
A notice about the airspace closure was published on the U.S. Defense Department's NOTAM (Notice to Airmen) website on May 10, as cited by Ukrainian defense news outlet Militarnyi.
"As in the past, it is now for Russia to show its willingness to achieve peace," the EU's statement reads.
Kremlin spokesperson Dmitry Peskov rejected the idea of a 30-day ceasefire between Russia and Ukraine, claiming in an interview with ABC News on May 10 that it would be "an advantage" for Ukraine.
"Our involvement in the war was justifiable, and this belongs to our sovereign rights," North Korean dictator Kim Jong Un said. "I regard this as part of the sacred mission we must execute for our brothers and comrades-in-arms."
The number includes 1,310 casualties that Russian forces suffered over the past day.
"We have a plan B and a plan C. But our focus is plan A, the essence of which is to get everyone's support" for Ukraine's accession, EU foreign policy chief Kaja Kallas said.
"(T)he presence at the Victory Parade of a country that bombs cities, hospitals, and daycares, and which has caused the deaths and injuries of over a million people over three years, is a shame," Polish Prime Minister Donald Tusk said.
"According to the participants of the performances, their goal is to remind the civilized world of the barbaric actions of Moscow, which for many years and decades has systematically violated international law," a source in Ukraine’s military intelligence agency (HUR) told the Kyiv Independent.
"I have great hope that an agreement for a ceasefire in Ukraine will be reached this weekend," German Chancellor Friedrich Merz said on May 9, shortly before traveling to Kyiv alongside the leaders of France, Poland, and the U.K.
U.K. Prime Minister Keir Starmer, French President Emmanuel Macron, German Chancellor Friedrich Merz, and Polish Prime Minister Donald Tusk will arrive in Kyiv early on May 10.
Hegseth denies leaking war plans in Signal chat while White House says messages appear 'authentic'

U.S. Defense Secretary Pete Hegseth said on March 25 that "nobody was texting war plans" in a Signal chat among top Trump administration officials.
"You're talking about a deceitful and highly discredited so-called journalist (Jeffrey Goldberg, editor-in-chief of the Atlantic) who's made a profession of peddling hoaxes," the defense secretary told Fox News.
The statement comes as Goldberg claimed on March 24 that he was mistakenly added to a private Signal chat where Trump administration officials discussed plans for strikes on Yemen.
Despite Hegseth's denial, the leak was indirectly confirmed by National Security Council spokesperson Brian Hughes, who said the chat "appears to be authentic." The administration is investigating how an "inadvertent number" was added to the group, he added.
According to Goldberg, on March 11 — four days before the U.S. military strike on Yemen — he received a Signal message from a user named "Michael Waltz," the namesake of U.S. President Donald Trump's national security adviser.
After accepting the request, he found himself in a chat named "Houthi PC small group" (PC referring to the Principals Committee, a U.S. national security decision-making body).
Waltz, a former Green Beret and Florida congressman, has been a vocal advocate for reducing U.S. military aid to Ukraine, arguing that European nations should bear more responsibility.
His appointment as Trump's national security adviser has raised concerns about a shift in Washington's approach to Ukraine and NATO.
The chat reportedly included 18 accounts with names corresponding to top U.S. officials, including Hegseth, Secretary of State Marco Rubio, Director of National Intelligence Tulsi Gabbard, CIA Director John Ratcliffe, and Trump adviser Steve Witkoff.
Gabbard is a former Democrat and Army National Guard veteran who has echoed Russian narratives on Ukraine. Hegseth is a Fox News personality and former Army officer who now serves as defense secretary despite lacking high-level military leadership experience.
Messages within the chat detailed the planning and discussion of the March 15 strike on Yemen, leading Goldberg to conclude that the group was real.
Trump later denied knowledge of the incident. "I don't know anything about it. I'm not a big fan of the Atlantic. To me, it's a magazine that's going out of business. It's not much of a magazine. But I know nothing about it," he said at a briefing.
The incident has sparked comparisons to past security controversies, particularly Hillary Clinton's use of a private email server while serving as secretary of state from 2009 to 2013.
The FBI investigated Clinton for handling classified information via private email, concluding in 2016 that she had been "extremely careless" but did not commit a prosecutable offense.
Some Democrats have highlighted what they see as hypocrisy, given Trump's past calls for severe punishment of Clinton over her email practices.
"You know what Hillary Clinton didn't do? Post war plans on her email," said Congressman Jim Himes of Connecticut, the ranking member of the House Intelligence Committee, Politico reported.
Clinton reacted on X with a brief post, saying, "You've got to be kidding me."
Legal experts interviewed by the Atlantic suggested Waltz's actions could constitute a violation of laws governing the handling of national defense information.
The Signal chat leak comes amid Trump's broader push to reshape U.S. foreign policy, as his administration grapples with wars in Ukraine and the Middle East while attempting to redefine America's global security commitments.

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