I'm not sure how Tom Clancy's name got on this book, but it has none of his style. Let's look at the problems. There is an organization with all sorts of power, established by the President, to handle certain situations that may arise. As would have to be the case, such a situation arises, and the President calls on the Op Center - then totally ignores their recommendations.
*** Spoiler alert ***
These are not in any specific order.
The Op Center has a psychologist who creates profiles of people. Good idea. But said psychologist also creates profiles of foreign dignitaries (based on what is released to the public) - and these profiles of how the individuals will react in various situations are used in the decision making process. However, when it comes to Op Center personnel (they have profiles as well), no one catches on to the fact that one Op Center employee is going after the boss with sex on her mind, even though the boss is happily married. Or if they do catch on, they figure that's OK. Talk about a way to mess up an office - even in 1995 (the copyright date) that was illegal, so why allow it to continue?
Two generals - one who signs a requisition to take nerve gas off-base as though he were giving a friend a three-day pass, and another one who chews out a US Senator on the phone. Neither is believable.
A former ambassador - now working for Op Center - who somehow gains access to a secure military communications facility and sends a message from South Korea to North Korea requesting a meeting. North Korea is believed to be at fault in the bombing of a civilian target - and then the same general who chewed out a US Senator decides to go with it. And don't get me started on how a former ambassador (who doesn't seem to have any military background at all) would be able to run the equipment, know the appropriate frequencies, etc.
The idea that satellites can be retasked in a matter of minutes, and with such good imagery that they can identify someone based on facial features from earth orbit. Not only that, but that can also read numbers off of a display.
Thinking that a number of soldiers can, by hand, push a SCUD missile launcher over onto its side. If it's stable enough to hold steady during a launch, soldiers aren't going to be able to push it over.
A USAF plane overflies North Korea - and gets itself shot for its trouble. That's one. But the idea that US military personnel then complain about it is utterly ridiculous. Overflights of another country without permission are a breach of their sovereignty; doing so with a military aircraft can be considered an act of war, not something for which there are procedures to force the plane down that do not involve shooting at it.
An US military team heads into North Korea to check on something - really?!? That, in and of itself, is an act of war (called "invasion"). Once they get there, they manage to convince a North Korean officer (note that the NK officer doesn't speak English and the GI officer doesn't speak Korean) to work with him.
On the other hand, the same NK officer gave control of his missiles over to a South Korean officer because the ROK officer shot him in the hand; I would hope that an officer in charge of a SCUD battery would be a little more resistant to handing over control of his missiles to a stranger from another country.
Op Center has the most powerful computers out there, and they're completely disconnected from the rest of the world. Great idea! But still someone manages to get a rogue program into said system, one that not only includes enough fake satellite imagery to provide data for at least 24 hours, but also can spread that data over a phone line to another incredibly secure computer system.
The fake imagery - somehow those who created the fake stuff knew exactly the time of day, year, and satellite angles to duplicate so that there were no continuity errors from one frame to the next - not within the fake imagery, but between the fake imagery and the real imagery that preceded it (something any decent analyst would have caught).
Tunnels that are four feet in diameter, dug for the specific purpose of transporting containers of nerve gas, but which provide no way to do so other than to have someone crawling down the tunnel pushing the container in front of them. Even the prisoners in Stalag Luft III (The Great Escape) built rails for trolleys to move people and equipment more easily and rapidly.
In short, it's not worth reading. Even a little bit.