President Zelensky has stated that European allies have failed to provide concrete pledges that they will defend Ukraine in the event of a new Russian aggression.
"I am asking this very question to every one of our allies and I have not received a definitive and straightforward response yet," he stated to the press on midweek.
These remarks follow a day after Britain and France signed a statement of purpose on stationing forces in Ukraine if a peace deal to conclude the conflict with Moscow is finalized.
However, comprehensive defense assurances have not been agreed. The United States, which has been leading efforts to halt the offensive, was reported to have abstained from signing such a pledge at discussions held in the French capital on Tuesday.
Following the negotiations in Paris, which involved some three dozen nations that comprise the group termed the 'Coalition of the Willing', UK Prime Minister Sir Keir Starmer said the two nations would "establish military hubs across Ukraine" to prevent any future incursion, while France's President Macron later said a significant number of soldiers may be deployed.
Allies proposed that the US would assume a leading role in overseeing any ceasefire. But the key issue of territorial concessions that Ukraine is being pressured to offer to Russia as a component of the settlement terms are still being discussed.
Moscow has not yet commented on the declaration made in the city of Paris.
Russian President Vladimir Putin launched a comprehensive military assault of Ukraine in the early months of 2022, and Moscow now occupies about 20% of Ukraine's land.
The UK Prime Minister characterized the bilateral declaration as "a vital part of our dedication to support Ukraine for the foreseeable future".
He added: "It establishes the pathway for the legal framework under which British, French and partner forces could function on Ukraine's territory, securing Ukraine's skies and seas, and regenerating Ukraine's armed forces for the years to come."
The Ukrainian leader praised that accord as a "huge step forward".
A day later, however, he appeared less optimistic.
"I see the will, the political will, and that the allies are prepared, and the partners are ready to give us strong sanctions, strong security guarantees," he said when questioned if nations in Europe would come to Ukraine's aid.
"However, until we lack such binding security pacts - formally ratified, endorsed by legislatures, supported by the United States Congress - this crucial issue remains unresolved. And even if they do, you must ultimately depend primarily on your inherent capabilities."
The Paris talks were also significant owing to the presence of envoys from former President Trump's administration, Jared Kushner and Steve Witkoff.
Witkoff said the participating countries "mostly completed" their work on finalizing security arrangements.
Recently, Zelensky said a peace deal was "90% ready".
Questions of land and security guarantees have been at the center of outstanding matters for negotiators.
Putin has repeatedly warned that Ukrainian troops must withdraw from the entirety of the Donbas region or Russia will seize it, dismissing potential concessions over how to end the war.
Zelensky has so far ruled out ceding any territory, but has proposed that Ukraine could redeploy its forces to an established line - but only if Russia reciprocated the action.
Moscow currently controls about 75% of the Donetsk oblast, and some 99% of the adjacent Luhansk region. The two regions form the Donbas industrial heartland.
Attacks have been escalating against Ukrainian cities - with a focus on power facilities. Russia has also made incremental advances in capturing more Ukrainian territory.
Ukraine has hit back at Russian targets with drones, albeit with more limited success.
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