Tree of Smoke by Denis Johnson
"Tree of Smoke" is a story about the people who fought in the Viet Nam was. Skip is an undercover CIA agent engaged in psychological warfare. His only contact is his maybe crazy colonel uncle. The book is full of the twists and turns that go with was. It's a big book, but it's fast reading. And it covers all the pertinent elements of war- spies, friends, enemies, battles, family. All of it. It's an incredible novel with so many threads that are easy to keep tract it. A must read for all war story fans.