and when her tour in iraq ended, she reenlisted for another. she seemed fearless. >> reporter: she could very easily have become a casualty. >> yes and other people did die. well, other friends of hers. >> reporter: in 2009, after two tours in iraq, maribel left the army and set part two of her plan into action, enrolling in college. but adjusting back to civilian life wasn't as easy as maribel had expected. like a lot of war veterans -- she suffered from post-traumatic stress disorder or p.t.s.d. >> reporter: she'd seen some terrible things. she ever talk about that? >> not with me. >> reporter: instead she focused on school, work, and family -- especially her niece, giselle. she kind of adopted you as this project. >> yeah. >> reporter: now, why did she do that? >> i think it was because she wanted me to have the best. >> reporter: as giselle grew older the self-improvement message sometimes came complete with push-ups. after all, maribel was all army. >> when i would get in trouble, she would make me do exercise in order to, like, work off t