KC-135 Stratotankers

Twelve magnificent KC-135 Stratotanker refueling airplanes lined up on the runway, just before takeoff, at the Kadena Air Base in Japan.

The 12 US Air Force Stratotankers was part of an exercise, where they refuel 50 aircraft with 800,000 pounds of kerosine.

Image credit US Air Force 

via sploid.gizmodo