This is by far the best description I have ever read about the basic training I went through back in 1981. From the moment we stepped off the bus at 2 am and on to the painted footsteps (and played "up/down" for 5 minutes) to graduation day it was their goal to remove our individual identities and replace them with a unified purpose.
I can recall one incident in particular that forced our unit to work together toward a common goal. Our TI (Training Instructor) was doing an inspection of our dorm room and did not care for the way a set of bunk beds had been made. He proceeded to bend at the knees, grab the frame of the bottom bed and flipped the set of bunk beds, mattresses and all, head over heels. We then had 5 minutes to not only reassemble the beds but to make sure that they were properly made.
I also found out that it is not a good idea to wear a college sweatshirt on the first day of basic training. They called me "college boy" for six weeks.