Changes

*: Clancy's first novel. Jack Ryan assists in the defection of a respected Soviet naval captain, along with the most advanced ballistic missile submarine of the Soviet fleet. The movie (1990) stars Alec Baldwin as Ryan and Sean Connery as Captain Ramius.  

*: Clancy's first novel. Jack Ryan assists in the defection of a respected Soviet naval captain, along with the most advanced ballistic missile submarine of the Soviet fleet. The movie (1990) stars Alec Baldwin as Ryan and Sean Connery as Captain Ramius.  

* ''Patriot Games'' (1987)

* ''Patriot Games'' (1987)

*: Ryan saves the (unnamed) Prince of Wales from terrorists, who go after Ryan and his family; the Prince helps round up the terrorists, who by this time have committed murder in Maryland, which has a death penalty. The 1992 movie stars Harrison Ford as Ryan, and has a fictional lord instead of the Prince of Wales. The bad guys are all killed off. (John Clark later tells Jack Ryan in ''Clear and Present Danger'' that he was on the helicopter that had to turn back when attacking the terrorist camps in northern Africa.)

*: Ryan saves the (unnamed) Prince of Wales from an Irish Republican terrorist attack in London. The terrorists later go after Ryan and his family while the Prince is visiting them; the Prince helps Ryan round up the terrorists, who by this time have committed murder in Maryland, which has a death penalty. The 1992 movie stars Harrison Ford as Ryan, and has a fictional lord instead of the Prince of Wales. The bad guys are all killed off. (John Clark later tells Jack Ryan in ''Clear and Present Danger'' that he was on the helicopter that had to turn back when attacking the terrorist camps in northern Africa.)

* ''The Cardinal of the Kremlin'' (1988)

* ''The Cardinal of the Kremlin'' (1988)