CDR Richard Jadick, a former Marine Corps officer turned Navy doctor, left a surgery subspecialty residency and volunteered for a deployment to Iraq with the Marines as a battalion surgeon...
Oath Betrayed: Torture, Medical Complicity and the War on Terror by Steven Miles is a must read for any military healthcare provider. The book is largely a criticism of the war in Iraq but does a great job illustrating the "dual agency" dilemma that military physicians face.