Officer and Enlisted are under the same rules.
Officers and enlisted have different status. The enlisted are much more at liberty to express their political opinions. Neither, of course, can tapke part in a political campaign.
Kos- “libertarian democrat” or democrat?
http://www.cato-unbound.org/2006/10/02/markos-moulitsas/the-case-for-the-libertarian-democrat/
“It was my fealty to the notion of personal liberty that made me a Republican when I came of age in the 1980s. It is my continued fealty to personal liberty that makes me a Democrat today.”
“The case against the libertarian Republican is so easy to make that I almost feel compelled to stipulate it and move on. It is the case for the libertarian Democrat that has created much discussion and not a small amount of controversy when I first introduced the notion in what was, in reality, a throwaway blog post on Daily Kos on a slow news day in early June 2006.”