From left to right: Petty Officer 2nd Class Timothy Evans, a corpsman with Advisor Training Cell and a Matchitoches, La., native, observes Cpl. Allen Intihar, a motor transport mechanic with 1st Marine Division and Cleveland native, assess his simulated casualty during a Combat Lifesavers course here. The four-day course, gives Marines the basic knowledge to provide aid for a number of common injuries and wounds that occur on the battlefield.