"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.
US warns 'serious consequences' over Russian naval base plans in Sudan
The U.S. issued a warning that any country or individual involved in Russia's plans to establish a naval base in Sudan could face "serious consequences," including sanctions, a State Department spokesperson told Fox News on April 24.
The statement marks a sharp departure from the typically measured tone of recent U.S.-Russia exchanges and signals Washington's concern over Moscow's expanding military footprint in Africa.
"We encourage all countries, including Sudan, to avoid any transactions with Russia's defense sector," the spokesperson said. "Moving forward with such a facility or any other form of security cooperation with Russia would further isolate Sudan, deepen the current conflict, and risk further regional destabilization."
Russia has long sought a strategic Red Sea outpost.
A draft agreement to build a naval base in Port Sudan first surfaced in 2020, outlining a 25-year deal allowing up to four Russian warships and 300 personnel. In exchange, Russia would supply Sudan with weapons and military support.
Though the original agreement was never ratified, talks resumed this year.
In February 2025, Sudanese Acting Foreign Minister Ali Youssef Al-Sharif and Russian Foreign Minister Sergei Lavrov declared that both sides had "reached an understanding" regarding the base's construction.
The former U.S. President Joe Biden's administration had previously accused Russia of supporting both sides in Sudan's internal conflict — the Sudanese Armed Forces (SAF) and the Rapid Support Forces (RSF).
Until now, President Donald Trump's administration had avoided taking a firm stance.
Sudan, located in Northeast Africa and bordered by seven countries, has become a focal point in the geopolitical contest between Western and Russian influence. In March 2024, the Wall Street Journal reported that small Ukrainian military teams helped Sudanese forces repel Wagner Group-backed RSF fighters.
Martin Fornusek
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