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.
The United States embassy in Kyiv on May 9 issued a warning that Russia could launch "a potentially significant" attack in the coming days, despite Putin's self-declared Victory Day "truce."
The sanctioned oil tankers have transported over $24 billion in cargo since 2024, according to Downing Street. The U.K. has now sanctioned more shadow fleet vessels than any other country.
Denmark potentially open to sending peacekeeping troops to Ukraine

Denmark is prepared to contribute troops if European peacekeeping forces are needed in Ukraine, Foreign Minister Lars Lokke Rasmussen and Defense Minister Troels Lund Poulsen said on March 10.
Following a meeting of Denmark’s parliament, the ministers said that the government had clarified its stance and received broad support from multiple parties.
"It is important that we in Europe send the right signals both to Putin and to Washington. That is what we are doing today by saying: If it comes to the point where a European presence is needed for a ceasefire or peace agreement to be reached, then Denmark is in principle prepared for that," Rasmussen said, according to Danish Broadcasting Corporation.
According to a poll published by the Ritzau news agency on Feb. 21, about 53% of Danes support sending peacekeepers to Ukraine after Russia’s full-scale war comes to an end.
Despite Denmark’s readiness, Poulsen emphasized that no concrete plans have been made at this stage. Any potential deployment would depend on future developments.

"We have not made a decision to make a concrete effort. It must depend on how things develop. Therefore, this is an expression of timely care," he explained, highlighting that Denmark’s position remains conditional on the evolving situation in Ukraine.
Poulsen does not foresee all of NATO-member countries spearheading a peacekeeping mission but expects several individual states to provide security assurances to Ukraine.
"Now the initiative has been taken by the French and British sides to form an overview of what could potentially be needed," he said, noting ongoing discussions about what such a mission might entail.
The specifics of Denmark’s potential troop contribution remain unclear, as Poulsen indicated it is too soon to determine which soldiers might be deployed. He also stressed that any commitment to Ukraine must not come at the expense of security in the Baltic region.

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