A Russian document dated Feb. 19 warned of a rapid Ukrainian push from the Sumy region into Russian territory up to 80km depth to establish a four-day corridor for main Ukrainian army units.
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A document dated Feb. 19 warned of 'a rapid push from the Sumy region into Russian territory, up to a depth of 80 kilometers [50 miles], to establish a four-day 'corridor' ahead of the arrival of the main Ukrainian army units in armored vehicles.
On February 19, unit commanders were warned of Ukraine's plans for a rapid breakthrough from Sumy region deep into Russian territory to a depth of 80 km
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Extracted: 2026-02-18T21:09:31.886Z
Source story: 39312