Petty Officer 1st Class Joseph D. Rawson, a corpsman with the 22nd Marine Expeditionary Unit and native of Philadelphia, shows Marines the modified jaw-thrust technique, April 1, as part of practical application training during the 22nd MEU Combat Life Saver course aboard Camp Lejeune, N.C. During CLS, Rawson taught Marines how to assist corpsmen in dealing with mass casualty scenarios and render aid in the absence of a corpsman. The 22nd MEU is scheduled to deploy this spring.