Poland plans to deploy a new anti-drone system along its eastern border, following several airspace violations stemming from the Russia-Ukraine conflict.
Ukraine's anti-corruption agency has announced searches and investigations into several parliamentary committees, alleging that security forces attempted to obstruct their work.
The Kremlin criticized Zelensky's Christmas speech as "uncivilized and hostile", suggesting the Ukrainian president implicitly threatened Putin's life.
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.