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.
Russia must be ready for potential conflict with NATO 'within 10 years,' defense minister says

Russia should prepare for multiple scenarios, including a war with NATO, in the next 10 years, Russian Defense Minister Andrei Belousov said during a Defense Ministry meeting on Dec. 16, the Interfax news agency reported.
Speaking about a possible confrontation with the alliance, Belousov pointed to unspecified changes in NATO countries' doctrines and conclusions reached during the Washington summit in July.
“(Preparing for war) is indicated by the decisions that were made at the North Atlantic Alliance summit held in July of this year. This is also reflected in the doctrinal documents of the United States and other NATO countries," Belousov said.
During NATO’s 75th-anniversary celebration and summit in July, Ukraine received more air defense systems, $43 billion in funding, a NATO representative in Kyiv, and new bilateral security agreements, as well as the pledge that its path toward membership is "irreversible."
Tensions between NATO and Russia have been mounting since the allied countries began providing arms and other support to Ukraine after the outbreak of the full-scale invasion. Moscow has issued a number of veiled and overt threats to the West over its support for Kyiv, including warnings of a possible nuclear response.
Multiple Western officials have raised warnings about a possible open clash with Russia in the coming years, with NATO leaders calling for increasing the defense spending benchmark from 2% to 3% of gross domestic product.
Speaking at the meeting, Belousov claimed that Ukraine lost "almost 1 million people" during the full-scale war, a figure much higher than the numbers provided by Kyiv and the Western media.
President Volodymyr Zelensky said that Ukraine suffered 43,000 soldiers killed and 400,000 injured, while The Economist estimated Kyiv's casualties at 60,000-100,000 killed and 400,000 injured.
Belousov also announced the planned creation of a military branch dedicated to unmanned systems, which should be finalized in the third quarter of 2025. Ukraine already established the Unmanned Systems Forces in September this year.
Russian President Vladimir Putin also spoke at the meeting, accusing the West of "pushing Russia to a red line from which we can no longer retreat." He further said that NATO is increasing its military presence near the Russian border and in other regions of the world.
The Kremlin's chief went on to accuse the U.S. of preparing a deployment of missiles with a range of "up to 5,500 kilometers" in Europe and the Asia-Pacific region, saying that Russia will lift "all restrictions" on the deployment of its own weapons if Washington takes this step.
Russia withdrew from multiple treaties on nuclear arms during the full-scale war and deployed a new intermediate-range ballistic missile, Oreshnik, in a strike against Dnipro in November.
Putin also claimed that Russian forces had conquered 189 settlements in Ukraine this year and that "over 1,000" people sign contracts with Russia's Defense Ministry every day to join the war.

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