This Companion whose contributions come from an outstanding array of experts deals exclusively with the military campaigns of Philip II and his son Alexander the Great and the forces that fought in them. In addition to discussions of the strategy and tactics of the two commanders, the Companion examines those elements that went into the determination of these strategies and tactics. Chapters will be devoted to the logistics of these campaigns, military recruitment and training, the care of diseased and injured soldiers, military organization and equipment, and much more. While no study can ever be truly complete, this Companion comes far closer that any such previous attempt.