I was in Iraq earlier this year, when I first arrived, I think RCT-5 was there. They had a change of command, and I want to say RCT-7 took over, but I can't remember.
Officially they're saying everyone is supposed to be out of Iraq by this time next year but as always we'll believe it when it happens.
As for BLT's, the floats never stop even during war as the US always maintains a forward deployed world wide naval presence to help ensure freedom of navigation on the high seas. Naturally it's a political thing but great duty for anyone who draws it.