Russia takes Avdiivka at heavy cost and presses in Donbas; Ukraine answers with a surprise incursion into Russia's Kursk region.
Conflict coverage · Eastern Europe
Avdiivka falls; Kursk incursion
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Why it mattersBoth sides show they can still surprise — while the front's centre of gravity grinds toward the Pokrovsk axis.
Confidence: HighSources: Established historical record · ISW campaign assessmentsMethodologyCorrections
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4 records that this event names, or that name it. Every one is an explicit reference in a published record — nothing here is inferred from subject matter.
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This is one entry in the Ukraine–Russia timeline. The full Key Events surface carries every dated turning point with its filters and its essential subset, and this event in place shows what came before and after it. How Vigil grades, dates and sources its claims is set out in the methodology.