The United States Marine Corps has a unique culture that ensures comradery, exacting standards, and readiness to be the first to every fight. Yet even in a group that is known for innovation, culture can push leaders to fall back on ingrained preferences. Jeannie L. Johnson takes a sympathetic but critical look at the Marine Corps's long experience with counterinsurgency warfare. Which counterinsurgency lessons have been learned and retained for next time and which have been abandoned to history is a story of battlefield trial and error—but also a story of cultural collisions.

The book begins with a fascinating and penetrating look inside the culture of the Marine Corps through research in primary sources, including Marine oral histories, and interviews with Marines. Johnson explores what makes this branch of the military distinct: their identity, norms, values, and perceptual lens. She then traces the history of the Marines' counterinsurgency experience from the expeditionary missions of the early twentieth century, through the Vietnam War, and finally to the Iraq War. Her findings break new ground in strategic culture by introducing a methodology that was pioneered in the intelligence community to forecast behavior. Johnson shows that even a service as self-aware and dedicated to innovation as the Marine Corps is constrained in the lessons-learned process by its own internal predispositions, by the wider US military culture, and by national preferences. Her findings challenge the conclusions of previous counterinsurgency scholarship that ignores culture. This highly readable book reminds us of Sun Tzu's wisdom that to be successful in war, it is important to know thyself as well as the enemy. This is a must-read for anyone interested in the Marines Corps, counterinsurgency warfare, military innovation, or strategic culture.

On September 28, 1863, the Galveston Tri-Weekly News caught its readers' attention with an item headlined "A Yankee Note-Book." It was the first installment of a diary confiscated from U.S. Marine Henry O. Gusley, who had been captured at the Battle of Sabine Pass. Gusley's diary proved so popular with readers that they clamored for more, causing the newspaper to run each excerpt twice until the whole diary was published. For many in Gusley's Confederate readership, his diary provided a rare glimpse into the opinions and feelings of an ordinary Yankee—an enemy whom, they quickly discovered, it would be easy to regard as a friend.

This book contains the complete text of Henry Gusley's Civil War diary, expertly annotated and introduced by Edward Cotham. One of the few journals that have survived from U.S. Marines who served along the Gulf Coast, it records some of the most important naval campaigns of the Civil War, including the spectacular Union success at New Orleans and the embarrassing defeats at Galveston and Sabine Pass. It also offers an unmatched portrait of daily life aboard ship. Accompanying the diary entries are previously unpublished drawings by Daniel Nestell, a doctor who served in the same flotilla and eventually on the same ship as Gusley, which depict many of the locales and events that Gusley describes.

Together, Gusley's diary and Nestell's drawings are like picture postcards from the Civil War—vivid, literary, often moving dispatches from one of "Uncle Sam's nephews in the Gulf."

The Marine Corps has always considered itself a breed apart. Since 1775, America’s smallest armed service has been suspicious of outsiders and deeply loyal to its traditions. Marines believe in nothing more strongly than the Corps’ uniqueness and superiority, and this undying faith in its own exceptionalism is what has made the Marines one of the sharpest, swiftest tools of American military power. Along with unapologetic self-promotion, a strong sense of identity has enabled the Corps to exert a powerful influence on American politics and culture.

Aaron O’Connell focuses on the period from World War II to Vietnam, when the Marine Corps transformed itself from America’s least respected to its most elite armed force. He describes how the distinctive Marine culture played a role in this ascendancy. Venerating sacrifice and suffering, privileging the collective over the individual, Corps culture was saturated with romantic and religious overtones that had enormous marketing potential in a postwar America energized by new global responsibilities. Capitalizing on this, the Marines curried the favor of the nation’s best reporters, befriended publishers, courted Hollywood and Congress, and built a public relations infrastructure that would eventually brand it as the most prestigious military service in America.

But the Corps’ triumphs did not come without costs, and O’Connell writes of those, too, including a culture of violence that sometimes spread beyond the battlefield. And as he considers how the Corps’ interventions in American politics have ushered in a more militarized approach to national security, O’Connell questions its sustainability.