Russia experienced territorial losses in Ukraine during April 2026, marking the first such occurrence since Ukraine's 2024 incursion into Russia's Kursk region.

Moscow lost territory on the battlefield in April 2026 for the first time since Ukraine’s bold August 2024 incursion into Russia's Kursk oblast, according to an analysis published this week. Moscow's losses were equivalent to some 116 square kilometres across several areas of the front line.