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.
Estonia proposes new rules preventing non-citizens from buying property near military facilities

Estonia's Interior Ministry has proposed new rules that would seek to limit the ability of non-citizens to buy property near military facilities, the Estonian media outlet ERR reported on June 7, citing a memo by Interior Minister Lauri Laanemets.
The measure is reportedly largely directed toward Russian and Belarusian citizens.
The proposal follows similar moves by Finland, which has also prevented the acquisition of certain types of property by Russian nationals on the grounds that it could "hinder" national defense.
"In Estonia, for example, there are apartments next to some very important sites where monitoring can be carried out," said Laanemets.
The memo cited a few specific examples, such as an apartment complex in Tallinn owned by a Russian businessman which is located a few hundred meters from the headquarters of Estonia's Defense Forces and another important military base.
Laanemets said that the ministry aims to produce a draft law by the end of the year to prevent "third-country nationals from buying real estate in Estonia around defense sites."
The measures will be less strict when it comes to Belarusians or Russians who have a permanent residence permit, Laanemets said.
"In general, we trust everyone who lives permanently in Estonia. We know who they are, we know their behavior," he added.
"But there could always be a situation where somebody from this country is cooperating with Russia or another country."
The specifics of what would be considered an area sensitive to Estonia's defense have not been ironed out yet.
"The simplest version here is to apply the authorization procedure," Laanemets said.
"That is, every time a person from a third country wants to carry out a (real estate) transaction (near a sensitive defense site), he or she has to obtain authorization."
Estonia's already strained relations with Russia have further deteriorated since the beginning of the full-scale invasion of Ukraine. Estonia is also ranked first in terms of financial contributions to Ukraine as a percentage of its GDP.
At the same time, Russia has engaged in a number of aggressive actions toward Estonia since February 2022, such as an incident in May in which Russian border guards unilaterally removed border markings from a river that separates Russian and Estonian territory.

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