President Zelensky stated that Kyiv is discussing with Washington the potential deployment of US soldiers to Ukraine as part of security guarantee measures.
Ukraine has launched an investigation after its soldiers were suspected of abandoning a command post in Huliaipole, leaving behind equipment and sensitive documents.
President Trump met with his Ukrainian counterpart, Volodymyr Zelensky, in Florida, declaring that negotiations had made "significant progress" despite a lack of agreement on the future of the Donbass region.
Poland plans to deploy a new anti-drone system along its eastern border, following several airspace violations stemming from the Russia-Ukraine conflict.
Oleksandr Shemet, a decorated "hero of Ukraine", was among four servicemen killed in a Mi-24 helicopter crash last week, reportedly after colliding with a Russian unmanned aerial vehicle.
Ukrainian intelligence released a video allegedly showing an operative infiltrating a Russian air base in Lipetsk province and setting fire to two Su-30 fighter jets.
Russia denies upcoming trilateral talks with Ukraine and the US, adding that efforts to change Washington's peace proposal cannot improve the situation.