President Zelensky has stated that European allies have failed to provide sound guarantees that they will defend Ukraine in the case of a new Russian aggression.
"I continue to pose this critical question to every one of our allies and I have not received a clear, unambiguous answer yet," he stated to the press on Wednesday.
These remarks follow a day after the UK and France inked a declaration of intent on deploying troops in Ukraine if a peace deal to end the war with Russia is finalized.
However, full security guarantees have not been agreed. The United States, which has been spearheading initiatives to halt the offensive, was reported to have abstained from signing such a commitment at discussions held in the French capital on the previous day.
Following the negotiations in Paris, which included some three dozen nations that comprise the so-called Coalition of the Willing, UK Prime Minister Sir Keir Starmer said the UK and France would "establish military hubs across Ukraine" to prevent any future incursion, while France's President Macron subsequently indicated a significant number of soldiers may be sent.
Partner nations suggested that the US would take the lead in monitoring a truce. But the central sticking point of ceding land that Ukraine is being pressured to offer to Russia as part of the peace proposals are continuing to be negotiated.
Moscow has not yet commented on the declaration made in the city of Paris.
Russian President Vladimir Putin initiated a comprehensive military assault of Ukraine in February 2022, and Russian forces currently controls about one-fifth of Ukraine's land.
The UK Prime Minister characterized the bilateral declaration as "an essential component of our commitment to stand with Ukraine for the foreseeable future".
He continued: "It establishes the pathway for the legal framework under which allied military personnel could operate on Ukrainian soil, securing Ukraine's skies and seas, and regenerating Ukraine's military for the years to come."
Zelensky hailed that accord as a "huge step forward".
Twenty-four hours afterward, however, he seemed more cautious.
"I perceive the determination, the political will, and that the partners are ready, and the partners are ready to give us strong sanctions, powerful defense assurances," he said when asked if European countries would defend Ukraine.
"But as long as we lack such security guarantees - formally ratified, endorsed by legislatures, supported by the United States Congress - this crucial issue remains unresolved. And even if they do, you still have to rely primarily on your own strength."
Negotiations in Paris were also notable due to the attendance of envoys from former President Trump's administration, Steve Witkoff and Jared Kushner.
Witkoff said the allies "largely finished" their work on agreeing security protocols.
Last week, the President indicated a settlement was "ninety percent complete".
Territorial concessions and defense pledges have been at the forefront of outstanding matters for negotiators.
Putin has repeatedly warned that Ukraine's military must pull back from all of Ukraine's eastern Donbas or Russia will seize it, rejecting any compromise over how to conclude hostilities.
Zelensky has so far ruled out relinquishing any land, but has proposed that Ukraine could redeploy its forces to an agreed point - but provided that Russia reciprocated the action.
Moscow now holds about 75% of the Donetsk oblast, and some nearly all of the adjacent Luhansk region. The two regions constitute the industrial Donbas region.
Attacks have been escalating against Ukrainian cities - particularly targeting energy infrastructure. Moscow is also achieving incremental advances in capturing more Ukrainian territory.
Ukraine has hit back at objectives inside Russia with drones, albeit with more limited success.
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