Air Force Staff Sgt. Anthony Diaz (right), a 407th Expeditionary Logistic Readiness Squadron ground transportation journeyman, races Marines during a Corporal’s Course physical training session April 29, 2017. The corporal’s course is a 14-day formal training event designed to educate Marine corporals on the duties and responsibilities of an NCO. Deployed Airmen were granted the opportunity to attend the course, which is an eligibility requirement for Marines before promoting to the rank of sergeant. (U.S. Air Force photo/Senior Airman Ramon A. Adelan)