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.
US Embassy in Russia issues warning of potential terror attack in Moscow over next 48 hours

The U.S. Embassy in Russia issued a warning on March 7 that "extremists have imminent plans to target large gatherings in Moscow" and urged American citizens to stay away from concentrations of people over the next 48 hours.
The embassy did not specify what kind of threats they referred to, or who might be behind them. The U.K. Embassy in Russia also repeated the advisory issued by the U.S.
Russia's Federal Security Service (FSB) said on March 7 that its agents had thwarted a potential Islamic State terrorist attack on a Moscow synagogue. The Russian state-owned TASS news agency said that FSB agents had killed several militants who were planning the attack, citing the FSB's press office.
It is unclear if the incident is related to the U.S.'s warning.
The U.S. currently has a "level 4" travel warning for American citizens who are considering going to Russia, the highest level of such advisories.
The warning, which says "do not travel," adds that there can be unpredictable consequences due to Russia's full-scale invasion of Ukraine and limited ability of the U.S. Embassy to assist American citizens.
There is also a heightened "potential for harassment and the singling out of U.S. citizens for detention by Russian government security officials."
U.S. citizens traveling or living in Russia "should depart immediately," the embassy said.

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