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2025 Sumy offensive, Kharkiv strikes, Kherson strikes, Mykolaiv strikes
Russo-Ukrainian war — 2025 Sumy offensive, Kharkiv strikes, Kherson strikes, Mykolaiv strikes

Context: Russo-Ukrainian war.
2025 Sumy offensive, Kharkiv strikes, Kherson strikes, Mykolaiv strikes
Event summary via Wikipedia Current Events (2026-01-03).