He joined the Army Air Corps in 1943 and was assigned to an orientation team that taught other recruits about the country's war aims.
Classes and workshops that emphasize role-playing have been added to teach recruits how to deal with domestic violence and disorderly conduct like graffiti vandalism.
Gilbreth also devised the standard techniques used by armies around the world to teach recruits how to rapidly disassemble and reassemble their weapons even when blindfolded or in total darkness.
When Pickford visited Hawks at basic training, his superior officers were so impressed that they promoted him to flight instructor and sent him to Texas to teach new recruits.
During World War II, Kretz served as a motorcycle troop instructor, teaching new recruits how to ride and maintain Indian war mounts.
Guevara set up factories to make grenades, built ovens to bake bread, taught new recruits about tactics, and organized schools to teach illiterate campesinos to read and write.
Promoted to the rank of corporal in 1953, Greene taught new recruits how to be artillerymen.
And the fire academy stopped teaching new recruits to slide down poles some years ago.
But militant Islamists including extremists in Jordan who embrace Al Qaeda's ideology teach recruits that children receive special consideration in death.
Although cleared for active duty, Schofield is seen as a liability by the Corps, and has spent most of his time teaching new recruits.