Overview

• Ukrainian drone footage shows soldiers emerging one by one from a pipeline before moving into nearby forest positions.
• The team entered the conduit from Russian-held Lyman, traveled under the Oskil River, and surfaced close to the front near Kupyansk.
• Participants advanced over roughly four days across about ten kilometers on makeshift carts carrying heavy equipment.
• Conditions inside the pipe were described as dusty, gas-filled, humid, and oxygen-poor, with past operations causing illness and reported fatalities.
• A French military analyst called the approach a tactical innovation that seeks surprise behind defenses, and Ukrainians have begun placing barbed wire in some pipelines to hinder such incursions.