Patriot Games by Tom Clancy Book

It is fall. Years before the defection of a Soviet submarine will send him hurtling into confrontation with the Soviets, historian, ex-Marine and CIA analyst Jack Ryan is vacationing in London with his wife and young daughter, when a terrorist attack takes place before his eyes. Instinctively, he dives forward to break it up, and is shot. It is not until he wakes up in the hospital that he learns whose lives he has saved — the Prince and Princess of Wales and their new young son — and which enemies he has made — the Ulster Liberation Army, an ultra-left-wing splinter of the IRA.