Nam is a nicely done extension of the WWII ruleset for Flames of War. Unlike previous editions of the rules however, Nam is self contained: it has the core rules as well as history, units, and scenarios. In addition, the core rules are explained using units that feature in the book. For example, rules for tanks are illustrated with pictures of M48A3 Patton tanks. This makes the book immersive. Rules for helicopters are also included, as are those for brown water navy. All in all, a very useful addition to your gaming collection.