"The Art of War" is a famous military treatise that was written in ancient China, likely in the 5th century BC. It is attributed to Sun Tzu, an influential military strategist. The text is made up of 13 chapters, each of which focuses on a different aspect of warfare and how it relates to military strategy and tactics. For many centuries, it was considered one of the most important texts on military strategy in East Asia and was included in a collection known as the Seven Military Classics. Its influence has spread beyond the military, and it is still highly regarded for its insights on tactics and strategy in various fields such as business, sports, and politics.