KYIV, Ukraine (AP) 鈥 Russian President Vladimir Putin on Monday declared a unilateral 72-hour ceasefire next week in Ukraine to mark Victory Day in World War II as the U.S. presses for a deal to end the 3-year-old war. Kyiv insisted on a longer and immediate truce.

The Kremlin said the truce, ordered on 鈥渉umanitarian grounds,鈥 will run from the start of May 8 and last through the end of May 10 to mark Moscow's defeat of Nazi Germany in 1945 鈥 . That timing translates to start at 2100 GMT, or 5 p.m. EDT, on May 7, lasting until 2100 GMT, or 5 p.m. EDT on May 10.

Ukraine, which has previously agreed to proposal of a full 30-day ceasefire, dismissed Putin's move as window dressing.

鈥淚f Russia truly wants peace, it must cease fire immediately,鈥 Ukrainian Foreign Minister Andrii Sybiha said, according to the ministry. He emphasized that Kyiv is ready for a 鈥渓asting, reliable, and complete ceasefire鈥 for at least 30 full days.

鈥淲hy wait for May 8? If we can cease fire now from any date and for 30 days 鈥 so that it is real, and not just for a parade,鈥 he said without specifying whether Ukraine would be ready to accept the Moscow-proposed truce.

The Kremlin had urged Ukraine to follow suit.

鈥淩ussia believes that the Ukrainian side should follow this example,鈥 it said, warning that 鈥渋n case of violations of the ceasefire by the Ukrainian side, the Russian armed forces will give an adequate and efficient response."

Putin previously announced a unilateral 30-hour Easter ceasefire and Ukraine voiced readiness to reciprocate any genuine truce at the time, but it said Russian attacks continued. Moscow, in turn, accused Ukraine of failing to halt its attacks.

Russia and Ukraine had also earlier pledged to observe a 30-day halt on strikes on energy infrastructure that was brokered by the Trump administration, but they repeatedly accused each other of massive violations until the measure expired.

The truce attempts underlined the massive challenges for monitoring any possible halt to hostilities along the more than 1,000-kilometer (over 600-mile) line of contact.

Up until now, Putin had refused to accept a complete unconditional ceasefire, linking it to a halt in Western arms supplies to Ukraine and Ukraine鈥檚 mobilization effort.

The Kremlin reaffirmed that 鈥渢he Russian side again declares its readiness for peace talks without preconditions aimed at removing the root causes of the Ukrainian crisis and constructive cooperation with international partners.鈥

Just before the ceasefire announcement, Ukraine and Russia targeted each other with long-range strikes.

Russia's drone attack early Monday damaged an infrastructure facility in Cherkasy, central Ukraine, disrupting gas supplies to households in the city, Mayor Anatolii Bondarenko said.

The Russian Defense Ministry said its forces downed 119 Ukrainian drones overnight, most of them over Russia鈥檚 Bryansk border region. In Ukraine, air raid sirens rang out across the country Monday morning. There were no immediate reports of casualties or damage.

Rubio says this week is 鈥榲ery critical鈥

The outcome of a push by Trump鈥檚 administration to swiftly end the fighting, which has cost tens of thousands of lives, remains unclear, clouded by conflicting claims and doubts about how far each side might be willing to compromise amid deep hostility and mistrust.

The clock is ticking on Washington鈥檚 engagement in efforts to resolve Europe鈥檚 biggest conflict since World War II.

U.S. Secretary of State Marco Rubio said Sunday that this week would be 鈥渧ery critical.鈥 The U.S. needs to 鈥渕ake a determination about whether this is an endeavor that we want to continue to be involved in,鈥 he said on NBC鈥檚 鈥淢eet the Press.鈥

American military aid has been crucial for Ukraine鈥檚 war effort, and further help could be at risk if the Trump administration walks away from attempts to end the war.

Trump's doubts about Putin's intentions

Trump said over the weekend he harbors in pursuing a deal, as Russian forces have continued to with cruise and ballistic missiles while the talks have proceeded.

But on Friday, Trump described a brokered settlement on the war as 鈥渃lose.鈥

Western European officials have accused the Kremlin of dragging its feet on peace talks so that Russia's larger forces, which have battlefield momentum, can seize more Ukrainian land.

Russian Foreign Minister Sergey Lavrov discussed the war in a phone call Sunday with Rubio, the Russian Foreign Ministry said. They focused on 鈥渃onsolidating the emerging prerequisites for starting negotiations,鈥 the statement said, without elaborating.

Russia has effectively rejected a U.S. proposal for an immediate and full 30-day halt in the fighting by imposing far-reaching conditions. Ukraine has accepted it, Ukrainian President Volodymyr Zelenskyy says.

A French diplomatic official said over the weekend that Trump, Zelenskyy and French President Emmanuel Macron agreed 鈥渢o pursue in the coming days the work of convergence鈥 to obtain 鈥渁 solid ceasefire.鈥

The diplomat said a truce is a 鈥減rior condition for a peace negotiation that respects the interest of Ukraine and the Europeans.鈥

The official was not authorized to be publicly identified in accordance with French presidential policy.

Ukraine unwilling to give up land

Ukraine, meanwhile, has balked at in return for peace, which Washington has indicated could be necessary.

A key point of leverage for Ukraine could be a deal with Washington that grants .

Ukraine and the U.S. have made progress on a mineral agreement, with both sides agreeing that American aid provided so far to Kyiv will not be taken into account under the terms of the deal, Ukrainian Prime Minister Denys Shmyhal said Sunday.

鈥淲e have good progress,鈥 he said after talks with U.S. Treasury Under Secretary Scott Bessent in Washington.

鈥淭he main thing is that we clearly defined our red lines: The agreement must comply with Ukraine鈥檚 Constitution, legislation, and European commitments, and must be ratified by Parliament,鈥 Shmyhal said.

Russia's full-scale invasion of its neighbor in February 2022 has developed a significant international dimension, further complicating negotiations.

Putin on Monday for sending what the U.S. estimates are thousands of troops to help defeat Ukraine, as well as allegedly supplying artillery ammunition.

Iran has also helped Russia in the war, with Shahed drones, and China has sold Russia machinery and microelectronics that Moscow can use to make weapons, Western officials say.

The U.S. and Europe have been Kyiv's biggest backers.

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