Feederle:
I don't know about now, but when I was still in the Air Force the "Guard" will be more or less like a part time job. Basically he will only "Be in" one weekend each month, and a two week "Tour" each year. The rest of the time he will be a "Civilian".
Rich please correct me if I am wrong, I have been out of the loop now for close to 21 and a half years.