The G. I. Joe trademark has been used by Hasbro for several different toy lines, although only two have been successful. The original 12-inch (30 cm) line introduced on February 2, 1964, centered on realistic action figures. In the United Kingdom, this line was licensed to Palitoy and known as Action Man. In 1982 the line was relaunched in a 3. 75-inch (9. 5 cm) scale complete with vehicles, playsets, and a complex background story involving an ongoing struggle between the G. I. Joe Team and the evil Cobra Command which seeks to take over the Free World through terrorism. As the American line evolved into the Real American Hero series, Action Man also changed, by using the same molds and being renamed as Action Force. Although the members of the G. I. Joe team are not superheroes, they all had expertise in areas such as martial arts, weapons, and explosives.