No. There will be seperate leadership on differing fronts, including military and political.
Palin may well fill in a future political leadership role, but I don't think she'll be advanced in a military one. A couple of possibilities do come to mind who might blur the distinctions.
Read Robert A. Heinlein's Starship Troopers [ca. 1959] for the reasons whi the distinction is important- just as Marine junior officers are required to do.