I once had a very in-depth conversation with Mr. Clancy, on a very late and stormy night in the airport. It was very insightful. (and I leaned we both played Harpoon.)
My favorite book was Red Storm Rising, based loosely on General Sir John Hacketts (Former NATO Northern Army Group Commander) novel, The Third World War, itself based on NATOs War Plan for Europe.
Later Harold Coyle wrote Team Yankee, about a single unit within the larger scheme of Clancys Red Storm Rising.
Harpoon rocks
That is really cool. Loved that guys books and characters. What a mind!