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What did 25 December 2025 show about the war's edges?

Summary
A look back at a day when the Baltic, Crimea and the Donetsk front each carried a piece of the Russo-Ukrainian war.
What did the war look like on 25 December 2025, a day that fell between several notable developments? The reported events spanned the Baltic Sea, occupied Crimea and eastern Ukraine, and each showed a different side of the conflict.
On 25 December 2025, the Polish Air Force intercepted and escorted a Russian aerial reconnaissance aircraft over international waters in the Baltic Sea. The aircraft stayed away from nearby Polish airspace. The episode was listed among violations of non-combatant airspace during the Russo-Ukrainian war.
Two days earlier, on 23 December 2025, the Russian-installed authorities in Crimea announced that mobile internet in the region would be blocked until the end of the Russo-Ukrainian war. The announcement concerned the peninsula's own communications, and the measure was open-ended by its stated terms.
On the same date, 23 December 2025, the Ukrainian Armed Forces confirmed their withdrawal from Siversk in Donetsk Oblast. That confirmation was the most direct battlefield news in the days leading up to 25 December.
Taken together, these reports show a war that extended beyond the front line: to patrols near NATO member Poland's airspace, to restrictions on civilian connectivity in Crimea, and to the withdrawal from a Donetsk Oblast town. Each was reported separately, and each belonged to the same conflict.