Night air-to-air refueling. From the cockpit of a C-17 cargo plane and through the Night Vision Goggles
Not only B-1, B-2 or B-52 strategic bombers (as well as the various tactical planes) need to refuel at night.
C-17 cargo planes, somehow used to carry Special Operations Forces require proper training to be able to deploy on intercontinental distances and to perform night, global reach missions.
The following video gives a hint of what refueling from a KC-10 Stratotanker aerial refueler looks like from the cockpit of a C-17, at night, through the green vision of the Night Vision Goggles.