【图书简介】 Called out of retirement to serve as the new president`s national security adviser jack ryan quickly realizes that the prolbems of peace are fully as comples as those of ear enemies have become friends ，friends enemies and even the form of conflict has changed ，when one of those new enemies readies a strike not only at america`s territory ，but at the heart of her economy ，it is ryan who must somehow prepare an untested president to meet the challenge. for there is a debt of honour to be paid-and the price will be terrifyingly high……
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