With arrow, sword, and spear

the long version

"This account analyzes ancient armies in terms of modern military doctrine, allowing the reader to make comparisons between the combatants. Recruitment, for example, varied tremendously with Romans drawing from a limited pool of recruits for service terms of twenty to thirty years and Chinese planners preferring a large pool with short-term service. While various types of governments prepared for and waged war in significantly different ways, Bradford finds that better organization led to success on the battlefield and that, for the most part, societal innovation was more important than technological innovation. The ongoing discussion of the lessons of ancient warfare around the globe will provide valuable insights for interested general readers and military professionals alike."--BOOK JACKET.