Changes

*''Debt of Honor'' (1994) - what if [[Japan]] invaded a US island? (ends with a 9/11 style attack on the US Capitol).

*''Debt of Honor'' (1994) - what if [[Japan]] invaded a US island? (ends with a 9/11 style attack on the US Capitol).

*''Executive Orders'' (1996) - continues where ''Debt of Honor'' left off, with Jack Ryan bumped up to President of the United States, just in time to deal with a new threat in the Middle East.

*''Executive Orders'' (1996) - continues where ''Debt of Honor'' left off, with Jack Ryan bumped up to President of the United States, just in time to deal with a new threat in the Middle East.

*''SSN'' (1996) - based on a video game.  Set on a Seawolf submarine during a war with China.

*''SSN'' (1996) - based on a video game.  Set on the Los Angeles-class submarine USS Cheyenne during a war with China.

*''Rainbow Six'' (1998) - [[John Clark]] leads an elite counter-terrorist group - biggest challenge is global eco-terrorists.

*''Rainbow Six'' (1998) - [[John Clark]] leads an elite counter-terrorist group - biggest challenge is global eco-terrorists.

*''The Bear and the Dragon'' (2001) - "Bear" is Russia, "Dragon" is China

*''The Bear and the Dragon'' (2001) - "Bear" is Russia, "Dragon" is China