Updated

The Institute for the Study of War released its daily Russian Offensive Campaign Assessment for 13 September 2026, republished by the Kyiv Post, summarising front-line movements, strike activity and Russian information operations over the previous 24 hours. The Washington-based think tank compiles geolocated combat footage, Russian milblogger claims and Ukrainian General Staff reporting to track marginal territorial changes along the eastern and southern axes. Its assessments are widely cited by governments, journalists and analysts as one of the few consistent open-source records of the war. The publication mattered because independent verification of battlefield claims remains difficult, with both Moscow and Kyiv issuing figures that cannot be confirmed on the ground. On a day dominated by reports of long-range drone exchanges and strikes near the Polish border, the assessment provided context on whether those attacks corresponded to any meaningful shift in the ground campaign. ISW's daily reporting also tracks Russian domestic messaging and mobilisation-related developments alongside combat operations.