DUBLIN — Ukraine cannot accept any U.S.-Russian ceasefire formula that would allow Russia to “come back with a third invasion,” Ukrainian President Volodymyr Zelenskyy said Monday.

During his first visit to Ireland as president, Zelenskyy received fulsome backing from Irish Taoiseach Micheál Martin, who stood shoulder to shoulder with him and condemned Russian leader Vladimir Putin.

“Putin has shown a complete indifference to the value of human life and to international laws and norms,” Martin told their joint press conference. “He must never be allowed to succeed.”

Zelenskyy’s whirlwind visit to Dublin — where he also received a standing ovation from the joint houses of parliament and met Ireland’s newly elected and NATO-critical President Catherine Connolly — coincided with resumed Moscow talks between Putin and U.S. President Donald Trump’s special envoy Steve Witkoff.

Zelenskyy said he spoke Monday with Witkoff and expected a post-talks update call Tuesday night — but downplayed hopes of reaching a speedy accord that would permanently end Russia’s attacks on his nation.

He dismissed as unrealistic any proposed agreement that fails to include clear-cut security guarantees from both the U.S. and European allies, a commitment that Trump appears loath to give.

“We have to stop the war in such a manner that in one year Russia would not come back with a third invasion,” he said, referring to Russia’s initial 2014 seizure of Crimea and parts of eastern Ukraine as well as its full-scale assault on Ukraine launched in 2022.

Martin said making any ceasefire permanent would require, in part, that Russia pays a punitive price for the costs of Ukraine’s postwar reconstruction. That would mean, he said, approving the European Commission’s plan to tap frozen Russian funds largely banked in Belgium. Martin expressed hopes that Belgium would drop its objections at the next European Council this month.

“When the U.N. charter is violated in such a brutal manner,” Martin said, referring to Russia’s ongoing invasion, “there has to be a deterrence of such behavior. There has to be some responsibility on the aggressor who has wreaked such devastation.”

“There’s a very practical issue of the enormity of the reconstruction of Ukraine and the cost of that, and who’s going to pay for that,” Martin said. “It cannot only be the European taxpayer. Europe did not start this war.”

But Ireland — a militarily neutral nation that will hold the EU’s rotating presidency in the second half of 2026 — did use Zelenskyy’s visit to boost its own financial support to Ukraine.

Martin signed an agreement with Ukraine pledging a further €100 million in nonlethal military equipment, including for minefield clearance, and €25 million to help rebuild Ukraine’s besieged energy utilities. Ireland, a non-NATO member with virtually no defense industries of its own, has declined to provide any finance for acquiring weapons.

Ireland, a country of 5.4 million people, also hosts more than 80,000 Ukrainian refugees — but, against a wider tide of anti-immigrant sentiment, is trimming the housing and welfare supports it has provided since 2022 to the Ukrainians.

Zelenskyy said he couldn’t concern himself with the level of Irish support, and was grateful it keeps being provided at all. “The question is not about the size of assistance. It’s about the choice,” he said.