I am getting an odd response to my RFI on this story.
It may be that the old 5/2 IA Bde was disestablished, redesignated, and/or transferred.
This may be a new replacement 5/2 IA Bde built around part of the two divisions worth of Peshmerga transfering to the IA.
Which leaves the question: What happened to the old 5/2 IA?
I have no idea.