I finally got interested at about 600 pages - no kidding - for about 75 pages.
This was the worst book I've ever read (there've been some other bad ones, but I had the common sense not to finish them). If I could take stars AWAY from a book, I would. At about 700 pages, it got so tedious that I thought I wouldn't finish; why was I wasting my time? (I had this thought a number of times while plowing through it.) After that, I was saying, 'Oh, come on!' because it became so outrageous. A better title would have been 'The Sum of All Ridiculousness'.
A convoluted plot with numerous sub-plots that I just knew would come to a logical conclusion, instead came together in a contrived conclusion. and some didn't come together at all. There were sub-plots about Ryan, his wife, Caroline, who was called Cathy (don't ask me why) & Dr. Ryan (as was Jack/Ryan/Dr. Ryan). Another sub-plot included President Fowler (Bob/Robert) & Elizabeth/Liz/Dr. Elliot. There were high & low level Arabs & Russians, German military & civilians, the U.S. Navy (submarine & destroyer officers & enlisted), Air Force (pilots & Pentagon personnel, Israelis & White House staff. Oh, & the Japanese. They had a small part too. and the Mexicans. Have I missed anyone? Chinese? No, I don't think there were any mentioned.
The sub-plots were confusing, but Clancy didn't think the story was complicated enough, so he spiced it up by referring to people, at various times, by their first names, last names, full names, nicknames, titles(multiple, & sometimes just their informal roles), middle names, terms of endearment & the reader was supposed to remember who he was talking about. Russian names? Forgetaboutit! I soon lost interest in keeping up with them (not just the Russians).
Several hundred pages, I'm sure, were spent describing the inner workings & ingredients of bombs, submarines, aircraft, facilities for making them & other dull stuff. Who cares? Dozens of pages were spent describing football plays & players, which were background for the bombing, but really, dozens? An entire chapter was devoted to describing the inner workings of a bomb which fizzled.
Goodley/Benjamin/Ben/Dr. Goodley was sent in by Dr. Elliot/Liz/Elizabeth to spy on & sabotage Jack/Ryan/Dr. Ryan, then suddenly became his ally. What was with that?
'Why did she finish this book at all?' you ask. At first I thought it would get better (not), then I felt I'd invested so much time in it I might as well finish, then I wanted to finish it so I'd have good cause for writing this scathing review.
Tom Clancy is a pompous know-it-all (language cleaned up). I won't be reading another of his books.
The almost five months spent reading this garbage were not entirely wasted. I read almost 30 other books concurrently with this one, most of which I enjoyed. I'm not exaggerating. I keep track of them on Goodreads.