The WSJ has the story
All-Robot Assault Opens New Chapter in Front-Line Warfare. Ukraine’s drone-only attack was the first of its kind and is set to carve a path for more fully automated warfare By Alistair MacDonald and Ievgeniia Sivorka
"When working on land drones, Kopach, who was set to begin a doctorate program in math at a U.S. university before the war broke out, studied the rover NASA used on Mars, with a particular focus on its wheels."