"We agreed that a full and unconditional ceasefire must begin on Monday, May 12, for at least 30 days. We jointly demand this from Russia, and we know we are supported in this by the United States," Zelensky said.
The announcement follows mounting fears that the two nuclear-armed countries were on the brink of engaging in another full-scale war.
Ukrainian media outlet ZN.UA reported on May 10 that their law enforcement sources confirmed an ongoing probe by the National Anti-Corruption Bureau into suspected embezzlement, money laundering and bribery.
Iran is preparing to send Russia Fath-360 short-range ballistic missile launchers, Reuters reported on May 9, citing Western security and regional officials familiar with the matter.
"Ukraine and all allies are ready for a complete unconditional ceasefire on land, in the air, and at sea for at least 30 days, starting as early as Monday," Ukraine's Foreign Minister Andrii Sybiha wrote.
U.S. President Donald Trump has acknowledged in private that Russia is difficult to negotiate with because they "want the whole thing," referring to Ukraine, the WSJ reported, citing sources familiar with the comments.
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.
Ukraine's navy responds to reports US was 'angry' at sinking of Russia's Moskva Black Sea flagship

Ukraine's navy has refused to confirm that there was "anger," "surprise," and "panic" among the administration of former U.S. President Joe Biden after Ukraine sunk the Mosvka, the flagship of Russia's Black Sea Fleet in April 2022.
Ukrainian Navy spokesperson Dmytro Pletenchuk said he "cannot confirm this information in any way," insisting there were multiple factors other than U.S. intelligence that played a role in one of Kyiv’s most significant early victories in the full-scale war.
"At that moment — it was the outset of a full-scale invasion — in fact, the situation was quite dynamic and depended on many vectors, many decisions, both on land and at sea," he said on national TV.
The Moskva sank on April 14, 2022, after being struck by two Ukrainian R-360 Neptune anti-ship missiles, leading to the total loss of the $750 million vessel and an unknown number of casualties from its crew of 500.
Russia has tried to cover up their fates and downplay the ship’s significance.
That wouldn’t be so easy. Moskva was the first Russian flagship to be sunk since the 1904-1905 Russo-Japanese War. It played a key role in Russia’s naval assault on Ukraine at the start of the 2022 invasion, and helped provide air cover for other Russian ships in the Black Sea and capture Snake Island.
According to the New York Times, American and Ukrainian naval officers were on an intelligence sharing call when the former noticed the ship on radar screens.
"Oh my God. Thanks a lot. Bye," the Ukrainians reportedly replied.

The U.S. was reportedly taken aback by the attack because Ukraine hadn't given notice of their attack plans in advance, nor was the U.S. aware that Ukraine possessed the kind of weaponry capable of sinking a warship, according to the New York Times.
The Biden administration also didn't want Ukraine to attack "a potent symbol of Russian power," highlighting the delicate balance Washington has maintained since the war’s outset — arming Kyiv while trying to avert a broader confrontation with Moscow.
The sinking marked a major Ukrainian victory in the full-scale war, and dealt a major blow to Russia’s Black Sea fleet.
Famously, it was the same ship that weeks earlier ordered Ukrainian marines on Snake Island to surrender, only to be given their now-iconic reply: "Russian warship, go f*ck yourself."
The phrase has been immortalized in Ukrainian culture in a myriad of ways including the issuing of a special series of stamps.

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