… As Jay Phillips shows in this richly detailed and meticulously researched book, the A Shau was more than a prop for the bloody struggle for Hill 937, it was a critical geostrategic region that shaped, and in many ways determined, the outcome of the Vietnam War …. A Shau is an excellent addition to the historiography of the Vietnam War and an important work that places this vital strategic and operational theater at the center of America’s failed war in Southeast Asia.