After being absent from the third film, "Goldfinger" (1964), SPECTRE returns in the fourth film, "Thunderball" (1965), which closely mirrors the events of the novel, and subsequently is featured in the following films. During the events of the fifth film, "You Only Live Twice" (1967), they attempt to incite a war between the United States and Soviet Union. In film number six, "On Her Majesty's Secret Service" (1969), Blofeld develops a biological warfare program and plans to demand clemency and recognition of a claimed title of nobility. SPECTRE's final appearance is in the seventh film, "Diamonds Are Forever" (1971), where they attempt to forcibly disarm the Cold War powers. SPECTRE was dismantled for good after "Diamonds Are Forever". Following "Diamonds Are Forever", SPECTRE and Blofeld were retired from the EON Films series, except for a cameo by a character implied to be Blofeld in "For Your Eyes Only" (1981) in which said character is killed. Partly owing to a copyright dispute between rival Bond producers Albert R. Broccoli and Kevin McClory, the character is never referred to by name and is credited as "Wheelchair Villain", though the closed captions for the film later refer to him as Blofeld.