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.
Ukraine will resist 'with their bare hands' if forced into unjust peace, CIA chief says

Ukrainian forces will fight even with "their bare hands" if they do not receive conditions acceptable for lasting peace, CIA Director John Ratcliffe said during a U.S. Senate hearing on March 25.
"I want to say that with regard to the Ukrainian resistance, the Ukrainian people and the Ukrainian military have been underestimated for a period of several years now," Ratcliffe said.
"From my reflections in observing, from an intelligence standpoint, I'm convinced that they will fight with their bare hands if they have to, if they don't have terms that are acceptable to an enduring peace."
The statement comes amid U.S. President Donald Trump's ongoing efforts to broker a ceasefire and a broader peace agreement between Russia and Ukraine.
Ratcliffe said that Trump is seeking to end the war under conditions that will ensure a lasting peace. He added that the CIA has taken steps to support Trump's diplomatic efforts.

In a deal brokered by the U.S., Moscow and Kyiv have agreed to a ban on strikes targeting energy infrastructure in both Ukraine and Russia. In addition, the belligerent parties agreed to "eliminate the use of force" and prevent commercial vessels from being used for military purposes in the Black Sea.
The U.S. and Ukraine initially backed a broader 30-day ceasefire during talks in Jeddah on March 11, which included halting ground operations.
Russian President Vladimir Putin rejected Washington's broad proposal during a call with Trump on March 18, demanding conditions that would weaken Ukraine's defense, including a suspension of foreign military aid.
Ukraine expects the partial ceasefire covering the Black Sea and energy infrastructure strikes to take effect on March 25, President Volodymyr Zelensky said.
In turn, Russia declared on March 25 that the Black Sea ceasefire would only take effect after Western sanctions on Russian food producers and exporters are lifted.

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