Well, that's interesting, because my experience is in the Air Force, and that kind of thing would never happen. In fact, such an order would never come from your commander, but from whatever office kept track of physical exam requirements, such as the clinic.
And that was exactly what Gary Killian (the son) said tonight, that the memo in question about reporting for this physical came from the Commander's office, which it should not have, but should have come from the clinic.