Juvat wrote in message . ..
Kevin Brooks posted:

Be that as it may, what matter
is that they were serving in a first line role through mid-73 with the
AC, and still standing full alert even later with the ANG.

And again...

July 73 for the AC (57th FIS), and October 76 with the ANG (a HIANG
unit).

Please allow me to apologize in advance if you are offended by the
question...but what the heck is AC?

You posted that several times and I'm sure it means Active
C-something. I used AD for Active Duty or are slipping in some army
jargon on us AF types?

Juvat (curious minds want to know)

Active Component, versus RC (Reserve Component). I believe the term is
commonly used in both the Army and Air Force these days. I believe it
can prevent some degree of confusion, because RC units frequently are
on "AD" of one type or another, as are their individual unit members.
A lot of ANG and ARNG units are on "active duty" right now in
Iraq--but they remain "reserve component" units.

Brooks