From Green Berets to the S-1 clerk and everyone in between, every soldier has something in common with each other: they’ve all started their military careers at the U.S. Army’s Basic Combat Training.

Core training has always been part of military PT and fitness testing. From crunches to sit-ups, flutter kicks, leg tucks and plank poses, the U.S. military uses many exercises to test core strength.

New soldiers arriving for their first day of basic combat training at Fort Jackson, South Carolina, are "welcomed" by drill sergeants. (Sgt. 1st Class Brian Hamilton/Army) Some recent changes to Army ...

The path to core strength is as varied as the number of exercises that build your core system. There are hundreds of exercises from which to select when working to build the core, but this type of ...