Mr. Rieckhoff is convinced that if the public heard more from the soldiers and marines who have actually experienced combat, including those who have been wounded and suffered emotional trauma, the wars in Iraq and Afghanistan would be viewed more seriously. Part of the problem, he said, is that too many civilians have little or no understanding of what war is really like, and of the toll it takes beyond the obvious toll of the dead and wounded.

Among other things, there are family problems, drug and alcohol abuse, untreated post-traumatic stress disorder, depression, and suicide — all directly attributable to service in a war zone. “Incredibly,” he writes in his book, “no government agency keeps track of the number of veterans who kill themselves after their service has ended — another sign of how little value is placed on veterans’ long-term well-being.”