In 1978, Layton reunited with Michelinie, to co-write "Iron Man". The two would become regular creative partners, and began their collaboration on "Iron Man" with #116 (November 1978). Micheline and Layton established Tony Stark's alcoholism with the story "Demon in a Bottle", and introduced several supporting characters, including Stark's bodyguard girlfriend Bethany Cabe; Stark's personal pilot and confidant James Rhodes, who later became the superhero War Machine; and rival industrialist Justin Hammer, who was revealed to be the employer of numerous high-tech armed enemies Iron Man fought over the years. The duo introduced the concept of Stark's specialized armors The two collaborated on the title until #154 and then returned for a second run from #215 (Feb. 1987) to #250 (Dec 1989).