Armed Conflict — 2026-09-30

Russia Uses Drained Kakhovka Reservoir Bed as Cover for Infantry Infiltration Toward Zaporizhzhia

BLUFRussian infiltration through the drained Kakhovka Reservoir bed harasses Ukrainian positions near Zaporizhzhia but is unlikely to yield control of Stepnohirsk by year-end.

Dmytro Filatov, callsign Perun, commander of the 1st Separate Assault Regiment, told Dnipro TV in mid-September that small Russian infantry groups could enter Zaporizhzhia this winter, citing the Stepnohirsk axis, according to Euromaidan Press 1. Information Resistance's Kostiantyn Mashovets wrote that Russian troops use the drained Kakhovka Reservoir bed to infiltrate and move supplies, and that one assault group reached Malokaterynivka before Ukrainian forces blocked it 1. ISW's September 26 assessment cited Ukrainian military observers describing the same route 12. Information Resistance coordinator Oleksandr Kovalenko called Filatov's warning "far more categorical than it should have" been, saying Russia holds only Stepnohirsk's 3rd microdistrict and southern Plavni and will not reach the Konka's north bank by year-end 1.

Analysis
Russian forces are unlikely to capture or establish confirmed control of all of Stepnohirsk by year-end. Infiltration through the drained reservoir bed will keep stressing defenders around Zaporizhzhia, but small groups reaching Malokaterynivka are not held ground. Russia holds only the 3rd microdistrict and southern Plavni, and clearing the rest would need a mechanized push that drone surveillance makes costly. Confidence is moderate: reporting agrees on the route but is thin on Russian force levels and on how many infiltrators have crossed. Sourcing is less independent than it looks, since Euromaidan Press and NV mostly relay Ukrainian military commentary and ISW is the only outside anchor. Filatov's warning may be aimed at winning reinforcements and air defense, with infiltration remaining a probing tactic. If it is, reserves and counter-infiltration assets should stay on air defense against the daily strikes rather than shift toward the city's approaches.
3 sources
  1. Russia drained the Kakhovka Reservoir. Now it hides in the dry bed to creep toward Zaporizhzhia - Euromaidan Press
  2. Russians could use dried-up Kakhovka Reservoir riverbed to break through to Zaporizhzhya - New Voice of Ukraine (NV)
  3. Russian Offensive Campaign Assessment, September 26, 2026 - Institute for the Study of War / Critical Threats

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