Adkaduo, one of the seven Wanderer Kingdoms, had a population that reached millions at its height.
This group wasn't as poor or brutal as the city dwellers now see them; overall, they resembled a group of people who refused to abandon the barren lands and relished their freedom under the sun.
In 2013, when Rogel, who is now the queen, was still a mercenary, she had stormed into the Arasaka Tower with Johnny Silverhand with the goal of rescuing a hacker named Otto.
But the mission failed, Otto wasn't rescued, though the good news is that they managed to withdraw successfully.
After withdrawing, Rogel chose to lie low in Mexico, where she came into contact with the Adkaduo people.
And Rogel's partner during her mercenary days, named Santiago, with his understanding of the wilderness and Wanderers, helped the two successfully blend into the Wanderers.
Thanks to Adkaduo's aid, Rogel and Santiago avoided Arasaka's pursuits and effectively disappeared.