In the order in which they occur in the storyline (and when they occur): * Without Remorse (1969–70, 1973 - Starts late 1969, in Hurricane Camille's aftermath. Continues the following spring, in 1970. Epilogue is titled "February 12, 1973") Ryan briefly appears in this novel. * Patriot Games (1982, based on a reference to Ryan's age, which is 31 at the beginning of the novel. This roughly fits with a reference to the Princess of Wales's first child being a baby and a few months old, Prince William was born in 1982) Discrepancies include the reference to a van having a likely year of manufacture of 1984. The subsequent events of Red Rabbit would seem to push its date back to 1981, rather than 1982. * Red Rabbit (seems to start in the spring of 1982 as Jack Ryan, Jr.'s age in the novel is given as 6 months, although the main action explicitly starts on August 15th) Discrepancies between 1982 in the Ryanverse and in actual events, aside from the date of the attempt on the Pope's life, include: the actual death of Mikhail Suslov in January 1982; frequent references to "Transformers" which did not appear until 1984; the fact that the Orioles played the Phillies in the World Series in 1983; the Baltimore Colts' relocation to Indianapolis not occurring until 1984; a reference to "Coke Classic" which did not debut until the summer of 1985. * The Hunt for Red October (1984 - although the calendar used is for 1982 and Ryan is spending his first Christmas in London, having arrived in the previous novel) * The Cardinal of the Kremlin (1986) – "The first chapter is set in January and states that Ryan is 35 years old. It also has references to the other books set earlier. For example the Foleys have been in Moscow for almost four years. The book must begin (not including prologue which was set end of previous year) in January 1986.
Starting with the following novel, the series becomes distinctly different from real history as noted below. * Clear and Present Danger (1988) The book refers to Jack's age as 40. Troops are sent into Colombia to fight against the Medina Cartel and reduce drug shipments to America. * The Sum of All Fears (1990–1991) — Israel partially cedes sovereignty over Jerusalem to the Vatican and Saudi Arabia, and the city becomes a United Nations protectorate policed by Swiss Guards. Residents of Jerusalem can choose between either Vatican, Israeli or Islamic judicial law. Denver is devastated by a terrorist nuclear explosion. The book occurs after the Persian Gulf War and before the dissolution of the Soviet Union. It is implied that both events occur at the same time in the Ryan universe as in actual history (of the Soviet Union dissolution), 1991. In the earlier chapters it states that it had almost been two Novembers since President Fowler had been elected, making the beginning set in 1990. Interestingly, the video game Tom Clancy's Rainbow Six puts the atomic detonation in Denver as having occurred in 1989. * Debt of Honor (1995–1996) — The U.S. and Russia destroy all of their ballistic missiles. After crippling the U.S. economy and becoming a nuclear power, Japan invades and takes the Marianas Islands; the United States and Japan fight a brief war, which the Japanese lose (they are subsequently denuclearized); an embittered Japanese pilot and proponent of the war crashes a 747 into the United States Capitol Building immediately after Ryan's confirmation vote for the Vice President, killing most of the Houseand Senate, the President, all nine Supreme Court justices, the senior military establishment (including the JCS), and most of the Cabinet; Ryan is left in charge of a gutted government. The end of the book occurs eleven months before 1997 presidential inauguration. Of interest, but not crucial to the plot of this or further books is that North and South Korea were said to be unified at some point between The Sum of All Fears and this book. * Executive Orders (1996) — Saddam Hussein is assassinated; Iran and Iraq merge forming the United Islamic Republic; the UIR launches a biological attack on the U.S. using the Ebola virus; the United States launches the Second Persian Gulf War against the UIR and defeats them; the Ayatollah is killed in a smart-bomb attack by the U.S. * Rainbow Six (1999–2000) - events are based on the Sydney Olympics held in 2000, RAINBOW — an elite counter-terrorist force — is created and engages terrorists across Europe. Ecoterrorists plan to create a genetically-enhanced virus based on Ebolaand cancer cells, which they plan to use to wipe out much of the world's population. * The Bear and the Dragon (2002) — Russia is admitted to NATO; China and Russia fight a major war, in which the U.S. intervenes on its NATO ally's side. It implies that the British Prime Minister is Tony Blair. Ryan has won re-election as president (2001). He resigns before the 2004 election making Robby Jackson president. * The Teeth of the Tiger (2006, based on the age of Jack Ryan, Jr.) The U.S. is now engaged in a global war on terrorism, in response to the September 11 attacks, which occurred in the Ryan universe as they did in the real world. It is mentioned that the wars in Afghanistan and Iraq occurred in the Ryan universe continuity, and that the Jerusalem Treaty signed in The Sum of All Fears was not entirely successful as some Israelis and Palestinians continue fighting each other. * Dead or Alive (2007, based on Jack Ryan's announcement that he would run against Ed Kealty for President "in the coming year") — The Umayyad Revolutionary Council (the Ryan universe version of Al-Qaeda) and its leader "The Emir" (based on Osama bin Laden) plan a string of major attacks on the U.S. The wars in Afghanistan and Iraq continue, as in our timeline, and President Kealty is in the process of withdrawing U.S. troops from Iraq. A character also explicitly refers to the date as May 2010, in the process of decoding encrypted messages, but this must be seen as a contradiction, as Ed Kealty is president and is only president for one term. In accordance with the Jack Ryan continuity, Kealty must be president in the term 2005-2009. * Locked On (2008, based on Jack Ryan Sr.'s campaign for re-election). Jack Ryan is running for president again. Since it is only possible for Kealty to serve one term per the rules of the Constitution, that term must be from 2005 to 2009. The election happens in this book, too, making it only possible that the events take place in 2008. Jack Ryan Sr.'s opponent, Edward Kealty, tries to dig up dirt on him by going after John Clark. Meanwhile, a renegade Pakistani general steals nuclear weapons from his country and delivers them to rebel Dagestani forces. In the middle of all this, Jack Ryan Jr. and The Campus try to prevent the use of the lethal weapon and come to help Clark. * Threat Vector (2012). Ryan has been sworn in as president of the United States after having been elected the previous year. It also states that the events of this novel happen six months after the previous novel. * Command Authority To be released on 3 December 2013.
Op-Center universe[edit]
Main article: Tom Clancy's Op-Center 1. Op-Center (1995) 2. Mirror Image (1995) 3. Games of State (1996) 4. Acts of War (1996) 5. Balance of Power (1998) 6. State of Siege (1999) 7. Divide and Conquer (2000) 8. Line of Control (2001) 9. Mission of Honor (2002) 10. Sea of Fire (2003) 11. Call to Treason (2004) 12. War of Eagles (2005)

Net Force universe[edit]
Main article: Tom Clancy's Net Force * Net Force (1999) * Hidden Agendas (1999) * Night Moves (1999) * Breaking Point (2000) * Point of Impact (2001) * CyberNation (2001) * State of War (2003) * Changing of the Guard (2003) * Springboard (2005) * The Archimedes Effect (2006)