Students of the Force Fitness Instructor Course receive a brief prior to the conduct of a physical fitness test aboard Marine Corps Base Quantico, VA., Oct. 10, 2016.

U.S. Marines conduct the crunches portion of a physical fitness test on Marine Corps Air Station Cherry Point, North Carolina, May 21, 2015. (Lance Cpl. Jodson B. Graves/Marine Corps) Marines ...

The program, launched in response to a mandate from Marine Corps Commandant Gen. Robert Neller, comes as the entire Marine Corps overhauls its physical fitness and combat fitness tests and as the ...

The 37th Commandant of the Marine Corps, Gen. Robert Neller, speaks to Marines of the I Marine Expeditionary Force during his visit to Marine Corps Base Camp Pendleton, California, Oct. 5, 2015.