Escucha ahora (32 min) | War is a bloody business and few people know this better than the medics, physician assistants, and assorted battlefield doctors. Since Vietnam, the U.S. has gotten a lot better at saving the lives of the fallen. This week on War College, we talk combat medicine with Andrew Fisher. Fisher is a physician assistant with the U.S. Army’s 75th Ranger Regiment. As a participant in more than 600 missions, Fisher knows first hand how to save lives on the battlefield and, with the help of his colleagues, pioneered new life saving techniques.