Στρωματεῖς, or "Stratagems," is a collection of military strategies and tactics attributed to the ancient Greek historian Polyaenus. Written in the 2nd century AD, it serves as a guide for commanders on how to outsmart opponents in warfare. The work is divided into several books, each containing various anecdotes and examples from history. The text highlights clever maneuvers and psychological tactics used by famous leaders, including Alexander the Great and Hannibal. By studying these strategies, military leaders can learn valuable lessons about deception, surprise, and the effective use of resources in battle.