Sign o' the times?

Yesterday
the Pentagon put out a bunch of releases about the movements of general
officers. I was struck that in one of them, three of the
four Air Force generals listed were female: Maj. Gen. Margaret H. Woodward,  Maj. Gen. Sharon K. Dunbar, and  Brig. Gen. Gina M. Grosso.

On the other hand, two of those three seem to specialize in
personnel matters. I remember being told that HR has gotten a reputation in the
corporate world of being a female ghetto. I wonder if the same is happening in
the military.