The Clone Wars are a galaxy-wide conflict that forms a major part of George Lucas's space opera/science fiction franchise Star Wars. The conflict is first mentioned in the film Star Wars Episode IV: A New Hope (1977), but no details are given (except for the implication of clones being involved) and the wars themselves are not featured until Star Wars Episode II: Attack of the Clones (2002), which shows the beginnings of the conflict, and Star Wars Episode III: Revenge of the Sith (2005), which shows its conclusion.