Bing West has written eleven books, including, with Jim Mattis, the #1 New York Times bestseller Call Sign Chaos. He served as a Marine grunt in Vietnam and later as an assistant secretary of defense in the Reagan administration. He has been on hundreds of patrols in Iraq and Afghanistan, including many operations with General Mattis. He is a member of the Military History Working Group at the Hoover Institution. He lives with his wife, Betsy, in Hilton Head, South Carolina, and Newport, Rhode Island.