Petty Officer 2nd Class Brian McKenna, a hospital corpsman

Petty Officer 2nd Class Brian McKenna, a hospital corpsman with Brigade Headquarters Group, 1st Marine Expeditionary Brigade, takes a patient’s blood pressure in the medical tent at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., Aug. 5, 2014. McKenna, from Sacramento, Calif., is the assistant lead petty officer for BHG during Large Scale Exercise 2014. LSE-14 is a bilateral training exercise being conducted by 1st MEB to build U.S. and Canadian forces’ joint capabilities through live, simulated, and constructive military training activities. (U.S. Marine Corps photo by Lance Cpl. Caitlin Bevel)