This document described the defense of the country, the defensive, offensive, strategic forces and the Navy. It also discusses the war strategy in the game and includes advise on what you should and should not do in case of an attack by another country.
Your army is divided into a defensive force, offensive and strategic forces and a navy, each with its own strategy. It will requires some thinking about the deployment of your weapons in order to provide optimal protection to cities, military assets and weapon systems.
There are many different weapon systems that are effective against some targets and less effective against others. Setting up a defensive and offensive strategies requires some experience.