The recruits are strong, cocky and undisciplined. But they won't be Marines until someone stronger, cockier and, above all, disciplined is finished with them. That someone is the Drill Instructor. In twelve weeks, the Drill instructor will square away what nobody ever finished.
Every Marine starts their life in the Corps by meeting the one person who
he or she will never forget. 20, 30, or 50 years after leaving the land
of the yellow footprints, the sight and sound of your DI is still as
clear and sharp as it was when he/she first screamed in your ear to....
"WIPE THAT STUPID GRIN OFF YOUR FACE AND GET OFF THE *&^$@#% BUS!!!"
The DI provides the lifeblood of the Marine Corps and will forever live in
the memory of every Marine. They are one of the common experiences that
makes every Marine a brother.