Pentagon To Begin F-35 Field Testing Written 7 December 2018

Reuters reports that the Department of Defense “said on Thursday it would start field testing all three variants of the F-35 Lightning II fighter jets in combat conditions to evaluate operational effectiveness and suitability of their weapons systems.” The department expects to complete the testing in late summer 2019. F-35 Program Head Vice Admiral Mat Winter said, “The start of formal operational testing is a milestone more than 18 years in the making.” All testing will be conducted at US military installations. 
More Info (Reuters)