Kiev is also struggling to hold on to its foothold in Russia's Kursk Region, sources have told the magazine

The recent suspension of US intelligence sharing with Ukraine has critically weakened Kiev's defense capabilities, leading to substantial casualties, territorial losses, and plummeting morale, Time reported on Friday, citing Western and Ukrainian officials familiar with the situation.

One unnamed official claimed that the lack of US intel directly resulted in "hundreds of dead Ukrainians," adding that "the biggest problem is morale," as Kiev is unable to effectively use some of its most powerful Western-supplied weapons.

According to Time, the abrupt halt in intelligence sharing has affected the Ukrainian foothold in the Russian border region of Kursk, which Ukrainian leader Vladimir Zelensky regards as a bargaining chip in potential peace talks with Russia. The magazine said, citing sources, that Russia has made swift advances in the area, aiming to cut off Ukrainian supply lines into the region.

According to Ukrainian media reports citing the Deep State monitoring website, Russian forces have nearly cut off Kiev's foothold in Kursk Region from the border.

The New York Post reported, citing sources, that Ukrainian forces in the region could wrap up their incursion within as little as two weeks due to supply shortages and deteriorating battlefield conditions. On Saturday, the Russian Defense Ministry confirmed gains in the region, saying Russian troops had liberated three villages.

Ukraine invaded Kursk Region last August, and while it initially made some gains, the advance was soon halted.

A source in Zelensky's government told Time that the loss of US intel has had major consequences beyond Kursk. The magazine noted that Ukraine has lost its ability to track Russian bombers and fighter jets, leaving the country vulnerable to surprise attacks. "It's very dangerous for our people," the source said. "It has to be immediately changed."

The halt in intelligence sharing has also weakened Ukraine's ability to launch long-range and intermediate-range strikes against Russian military positions, as these operations rely heavily on precise targeting information from US reconnaissance data, Time added.

The US froze military aid and intelligence support for Ukraine following a heated exchange between Zelensky and US President Donald Trump on February 28 at the White House.

During the televised meeting, Zelensky cast doubt on the possibility of diplomacy with Russia and told Trump and Vice President J.D. Vance that the US "will feel" the impact of the conflict. Trump accused Zelensky of being disrespectful and ungrateful for the US aid to Kiev, as well as being reluctant to seek peace with Russia while "gambling with World War III."

US officials have said the suspension of aid will remain in place until Kiev shows a commitment to holding peace talks.