Smart mines were a specific kind of space-based explosive device that possessed the capability to relocate themselves in order to pursue designated objectives. Alphabet Squadron, led by Yrica Quell, utilized the Gobreton minefield, which was composed of these smart mines, as a training ground for honing their skills in combat and target acquisition. To safeguard their military personnel stationed on the planet Pandem Nai, the Galactic Empire's 204th Imperial Fighter Wing established a defensive perimeter in the Pandem Nai system by deploying a minefield comprised of smart mines.