The Cardinal of the Kremlin is a novel by Tom Clancy, featuring his character Jack Ryan. It is a sequel to The Hunt for Red October, based around the development of the Strategic Defense Initiative and its Soviet equivalent, covering themes including intelligence gathering and counterintelligence, political intrigue, and guerrilla warfare in Afghanistan.
This book is notable for its outrageous (yet plausible) conclusion and the increasing predominance of pro-military, pro-law enforcement views endorsed in Clancy’s writing. It is also the closest to a straightforward spy novel of all of his books. Ironically, in spite of Clancy’s self-proclaimed pro-military views, he caused considerable trouble to the military by outing black operations defense contractor Mickey Finn and his company Qual-A-Tec. Once his name was made public, Finn ceased to be in a position to supply his advanced weapons systems to U.S. special forces. Clancy refused to apologize for this, claiming that he was “honoring” Finn by mentioning him by name.
The American military discovers through "National Technical Means" that the Soviets were working on a ABM defense system—an equivalent to the U.S. Strategic Defense Initiative—based at Dushanbe in Tajikistan. Unbeknownst to most of the protagonists, the CIA has deployed a liaison, one Emilio Ortiz, to the region to aid the rebels. One guerrillas groups leader, a man known only as "The Archer," is questioned about a strange light he witnessed (after a Soviet test of their weapon, which devastated an obsolete satellite). The Archer, noting the fear that the Americans have of the light in their questions, determines that the installation is a threat to him and his people, and tasks his group with attacking and pillaging the installation. In the end, the guerrillas partially succeed, destroying a large amount of equipment, though most of the scientific staff survive, and the Afghans suffer horrendous losses, including the death of The Archer.
Eventually, Filitov's identity is uncovered by the KGB, and he is subsequently arrested while attempting communication with his control officer, Mary Pat Foley. However, Ryan concocts a plan to secure the return of both Filitov and arrange the defection of the sitting KGB Chairman, Nikolay Borissovich Gerasimov. He schemes to go public with the defection and capture of Krasny Oktyabr, banking on the political instability of the Soviet Politburo. Filitov and Gerasimov are to be exfiltrated on the departing American delegation's aircraft, and Gerasimov's family is to be extracted from Estonia by John Clark onto the submarine Dallas.
As Dallas enters Soviet waters, a patrol frigate detects the submarine's presence. Luckily, Marko Ramius, the former captain of Red October, is aboard Dallas. He gets on the radio and declares that they are the special-operations submarine Novosibiirsk Komsomolets. Meanwhile, Clark has Gerasimov’s wife and daughter board the submarine via a small Zodiac launch.
At this point, Ryan has successfully flipped Gerasimov, who has seen the writing on the wall, and fetches Filitov from his confinement using his power as the KGB Chairman. They then stop at Sheremetyevo Airport, awaiting the departure of the American delegation. Unfortunately, two security officers are clued into the operation: Major Zarudin, chief of security for the airport, and Sergey Nikolay´ch Golovko, an officer of the KGB’s First Chief Directorate (the “Foreign” Directorate). As the pair pursues Gerasimov and Filitov, Ryan falls from the aircraft to the tarmac, and is taken into custody by an enraged Golovko, who points an (unloaded) gun at Ryan's head. (This would become a joke between the two in later novels). Ryan orders the plane to depart, banking on his diplomatic status to protect him from harm. Golovko then escorts Ryan to the private dacha of General Secretary Narmonov, where they discuss the CIA's interest in his political position and the CIA's interference in their internal security.
The novel ends with Ryan and several others (including the Defense Attaché from the Soviet Embassy) attending the funeral of Filitov, who died of heart complications and old age during his CIA debriefing period.