China's People's Liberation Army has showed off their use of 3D printing in a big way via a military drill. The PLA performed a drill in which one of 6 refueling trucks in a convoy catches fire. The Unit does not have the coupling part required to fix the damage caused by the fire, so instead they pull out a 3D printer and print that part. The drill was a success and will likely act as a headway to further tests before being implemented in live military action. More details on the PLA's use of 3D printing can be found here: http://3dprint.com/88641/china-army-pla-3d-print/