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.
Zelensky: Liberation of Ukraine's territories occupied after 2022 may force Putin to negotiate

The liberation of Ukraine's territories occupied by Moscow after a full-scale invasion in February 2022 could push Russian President Vladimir Putin to negotiate, President Volodymyr Zelensky said in an interview with CBS News published on March 28.
Zelensky said that once Russian troops retreat from these territories, Putin's support inside the country will be shaken, and Ukraine will not have to liberate all its territories seized since 2014 "exclusively by military means."
Ukraine and Russia held peace talks in the early stage of the full-scale war, but no results were achieved. Ukraine said negotiations with Russia are impossible until a complete military withdrawal. In September 2022, Zelensky said he would only be open to the idea if Putin is no longer in power.
"I am sure when he (Putin) loses what he occupied since 2022, he will fully lose the confidence even of those countries which are still in doubt whether they should support Ukraine or not," Zelensky said.
"And he will also lose the power within his country. As soon as it happens, he will be ready for a dialogue," the president added.

Ukraine said the peace talks should be held on the basis of its 10-step peace formula, which includes a full withdrawal of Russian troops from Ukraine. The proposals also call for prosecuting those responsible for war crimes, preventing ecocide in Ukraine, and ensuring energy and food security as well as nuclear safety.
Russia has repeatedly rejected this plan and said it would not attend the Ukraine peace summit scheduled to be held in Switzerland later this year, even if it is invited.
Over 160 countries will be invited to discuss Kyiv's peace formula and create a joint document on what must be done to restore the country's sovereignty.
As Kyiv finds itself in an increasingly perilous situation in the war, Ukrainian military officials warned that Moscow may be preparing for a new major attack, mustering a force of 100,000 troops.
Zelensky said that the situation on the battlefield has been stabilized compared to earlier months, but he did not rule out that a major Russian offensive may come at the end of May or in June.

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