“We observed how the enemy operates underground and studied their methods. The Russians intended to use gas pipelines to infiltrate the rear of our forces. So, we went underground ourselves,”

Ihor Obolienskyi · said date not stated · reported 2026-10-22

Obolienskyi described Operation Veles, the world's first underground counteroffensive, in which Ukrainian soldiers crawled through tunnels to advance 15km into enemy rear lines.