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.
Ukrainian edtech company Headway joins global entrepreneur network Endeavor

Educational technology company Headway has become the first Ukraine-born business selected to join Endeavor, a global network of entrepreneurs, the company announced in a press release on Feb. 21.
The selection marks a milestone for Ukraine's tech sector, coming almost three years after Russia's full-scale invasion and following Endeavor's launch in the country in October 2024.
The membership gives Headway access to Endeavor's network of 2,800 entrepreneurs and potential funding through Endeavor Catalyst, the organization's investment fund that can invest up to $2 million in member companies.
"This is a powerful signal for Ukrainian startups: our companies are visible to the whole world and have a great chance of entering global markets," said Digital Transformation Minister Mykhailo Fedorov, noting that Endeavor's network includes companies like Glovo, Amazon, and Netflix.
Headway, founded in 2019, develops educational applications focused on lifelong learning and has reached more than 130 million users worldwide. The company operates in over 170 countries, including the U.S. and the U.K.
"It's a mark of quality, as Endeavor brings together companies with a high level of trust — they all undergo a rigorous selection process," said Headway founder Anton Pavlovsky.

The organization evaluates approximately 5,000 companies annually, selecting only 80-90 for membership. Currently, Endeavor Ukraine is reviewing about 100 companies with Ukrainian roots for potential membership, with several already undergoing the selection process.
Vargha Moayed, who helped build UiPath into a $20 billion company and participated in Headway's evaluation, praised the company's track record. "Headway has proven success, having bootstrapped the company," Moayed said. "The company's leaders remain eager to scale the business further."
Sviatoslav Sviatnenko, Endeavor Ukraine's founding managing director, aims to select at least three companies with Ukrainian roots annually.
"For a long time, Ukraine's tech ecosystem remained somewhat isolated from international hubs, networks, and markets," Sviatnenko said. He added that Endeavor Catalyst might make its first investment in Ukraine in 2025.
The European Bank for Reconstruction and Development (EBRD) and the Ukraine-Moldova American Enterprise Fund (UMAEF) supported Endeavor's launch in Ukraine. The organization's board includes Vital Laptenok, Flyer One Ventures general partner and Genesis co-founder, as chair.
Founded in 1997, Endeavor operates in 45 countries across Latin America, Europe, Asia, Africa, the Middle East, and the United States. The organization's portfolio companies generate $67 billion in revenue and provide 4.1 million jobs globally. One in six Endeavor portfolio companies has reached a $1 billion valuation.
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