Sierra Pacific Flights

I have been noticing N709S (Sierra Pacific Airlines B735) flying to and from different military bases in the last few days. I originally saw it flying from Yuma, AZ to NAS Patuxent River, then I saw it at MCAS Cherry Point, is there a known reason for the traveling? I would assume it would have to be some sort of government charter.

Moving personal back and forth usually for training,Sierra Pacific is one of many US Airlines that have government/military contract to move personal and or equipment.These aircraft are part of the Civil Reserve Air Fleet,to save Military aircraft for more important or high priority movements.