by Josh Culper, American Thinker:

Nearly two decades ago, I left my hometown for Lackland Air Force Base.  Every enlisted airman since 1968 has completed Basic Military Training at this historic base in the Alamo City.  First, trainees work to graduate from being a “rainbow,” referring to the mixed colors of their civilian clothing, which involves getting a free haircut, getting new uniforms, and learning how to move in a formation.  Trainees are further unified by reminders from military training instructors that they are no longer “back on the block,” and from here on out, they “all bleed blue!”