They're Delta...I used to hate that show and we'd watch it to make fun of it, now I'm half way through season 2 and watch season 3 when on. No idea, its fun and has gotten better. They toned down some of the wife stuff. There is alot of easily fixable inaccuracies that I'm surprised are allowed to continue but its not bad. I don't remember them ever going to Iraq. They go to Iran and Afghanistan alot. The Brits had a great show Ultimate Force, about the SAS. The Unit, is a mirror image of that. Not as much wife stuff, but its written by an ex SAS guy, much like the Unit is. The two series have had many of the same story lines. Beserk check it out.
