Add Yahoo as a preferred source to see more of our stories on Google. A Walter Reed National Military Medical Center Sailor conducts her physical fitness assessment. (MC3 Julio Martinez Martinez/U.S.

Senators are delving into the question of whether the military establishment is prepared to handle mass combat casualties. Shown here, Idaho National Guard members conduct medevac training in 2022.

JACKSONVILLE, Fla. — For years, Navy veteran Robert “Doc” Hernandez says his world felt dark, trapped in what he calls “the black hole” of post-traumatic stress disorder. Doc served as a combat medic ...