Granted, not high on our list of things to worry about. But according to the Stratfor article, the best way to enter Iraq from Turkey in force is via Syria. The alternative being to risk being bottled up along very bad mountain roads.
Syria might agree to permit such a move, or simply not resist it if we did it. Or, we might simply not need to do it, since it might be impossible for Iraq to take advantage of any temporary traffic jams coming across the frontier, since they likely have no way to project force into the area.
Syria could do it, if she were willing, but she would be at war with us and the Israelis at the same time, so it most probably would never happen.
On the other hand, according to other articles recently printed, Syria has been sending, selling, new military equipment to Iraq. This suggests they have chosen sides, although it also suggests they don't plan to be doing any fighting themselves.