Ukraine intelligence says it killed 108 Russian soldiers in Sumy

According to a statement from HUR's Active Operations Department on October 20, the operation was conducted by its Group 10 special forces unit and was aimed at thwarting Russian offensive plans and preventing Russian troops from cutting off Ukrainian logistical routes in the region. HUR said the operatives cleared Russian forces from more than 600 hectares of forest before handing the territory over to Ukraine's Defense Forces. The intelligence agency did not specify the exact location or the timeframe of the operation.

The Kyiv Independent, which first reported the HUR claims, stated it could not independently verify the numbers. The report also noted that Ukraine's defensive efforts had reduced the pace of Russia's territorial advances by more than half in the first six months of 2026, according to a statement by then-Commander-in-Chief Oleksandr Syrskyi on July 10.

In a separate development, Ukraine's 3rd Army Corps said on September 28 that it had made further territorial gains in northern Donetsk Oblast as part of Operation Vivaldi, a counteroffensive that has reclaimed a total of 176 square kilometers. The corps claimed that the latest phase of the operation inflicted more than 2,000 Russian casualties and resulted in the capture of over 250 Russian soldiers.

Both sets of claims come as the war in Ukraine continues into its third year.

Analysis

Why This Matters

The HUR report, if accurate, suggests Ukrainian special forces are maintaining operational capacity to conduct ground-clearing operations in contested border regions.
The separate gains claimed in Donetsk indicate Ukraine may still be mounting limited counteroffensives despite overall Russian territorial pressure.
Independent verification of these figures is lacking, making it difficult to assess the true battlefield situation.

Background

Ukraine has been defending against Russia's full-scale invasion since February 2022. Sumy Oblast, which borders Russia, has seen periodic incursions and shelling. HUR and other Ukrainian units frequently announce the results of operations, but independent confirmation is often impossible due to restricted access. In mid-2026, Ukraine's leadership said defensive operations had slowed Russian advances significantly, while also claiming territorial gains in the east.

Key Perspectives

Ukraine's HUR: The intelligence agency claims its special forces successfully disrupted Russian plans and recaptured territory, inflicting significant casualties and capturing prisoners. The report aligns with broader Ukrainian messaging of continued resistance and tactical success. Russia's Ministry of Defense: No corresponding statement has been reported. Without Russian confirmation or denial, the accuracy remains unverified. Military analysts: These claims follow a pattern of unverifiable battlefield reports from both sides. The true operational impact can only be assessed through open-source analysis or eventual documentary evidence.

What to Watch

Whether Russian sources acknowledge or dispute these specific losses in Sumy Oblast.
Satellite imagery or geolocated footage that might confirm the extent of ground cleared.
Official casualty figures or prisoner exchanges that could corroborate the numbers.

Checked

12 claims in this story checked against 1 source: 7 supported.

Show each claim

SupportedHUR says its special forces killed 108 Russian soldiers in the Sumy operation.Kyiv Independent: “Ukrainian special forces killed 108 Russian soldiers”
SupportedHUR says the operation captured 29 Russian soldiers.Kyiv Independent: “captured another 29”
SupportedThe seven-week operation struck more than 1,100 targets.Kyiv Independent: “struck more than 1,100 Russian targets during a seven-week operation in Sumy Oblast”
Partly supportedThe summary says the operation cleared 600 hectares of forest.Kyiv Independent: “cleared Russian troops from more than 600 hectares of forest”
SupportedThe Kyiv Independent could not independently verify the claims.Kyiv Independent: “The Kyiv Independent could not independently verify these claims.”
Not in the sourcesThe Kyiv Independent was the first to report the HUR claims.
Partly supportedThe operation was aimed at thwarting Russian offensive plans and preventing troops from cutting off Ukrainian logistical routes.Kyiv Independent: “the operation was carried out by its Group 10 special forces unit, which reportedly thwarted Russian offensive plans and prevented Russian troops from cutting off Ukrainian logistical routes in the region.”
Partly supportedHUR said it handed the cleared territory over to Ukraine’s Defense Forces.Kyiv Independent: “before handing over the positions to Ukraine's Defense Forces”
SupportedUkraine’s defensive efforts reduced the pace of Russia’s territorial advances by more than half in the first six months of 2026.Kyiv Independent: “Ukraine's defensive operations reduced the pace of Russia's territorial advances by more than half in the first six months of 2026, then-Commander-in-Chief Oleksandr Syrskyi said on July 10.”
SupportedOperation Vivaldi had reclaimed a total of 176 square kilometers.Kyiv Independent: “a counteroffensive that had reclaimed a total of 176 square kilometers.”
SupportedThe latest phase of Operation Vivaldi inflicted more than 2,000 Russian casualties.Kyiv Independent: “the latest phase of the operation inflicted more than 2,000 Russian casualties”
Not in the sourcesThe war in Ukraine is continuing into its third year.