Furlough.
Taking leave without permission is commonly referred to as "unauthorized absence" or "absent without leave (AWOL)." It is a violation of workplace or military policies and can result in disciplinary action.
Yes
A military scientist
It was rumored that he will leave in October 1st, probably earlier or later, they haven't confirmed when he will leave.
DD214
Complete your time of service to your country.
Category III - Military leave/PCS house hunting: MIlitary personnel in an ordinary, reenlistment or convalescent leave status.
A soldier
They did (and still do) call those guys civilians.
yes
No, that is not possible.
Veterans.