Aircraft CF-02, an F-35 Lightning II Carrier Variant attached to the F-35 Pax River Integrated Test Force (ITF) assigned to Air Test and Evaluation Squadron (VX) 23 completes a flyover of the guided-missile destroyer USS Zumwalt (DDG-1000). US Navy PhotoThe driving concept behind the Pentagon’s Third Offset Strategy comes down to : If we’re not changing, we’re losing to “pacing competitors” like Russia and China in conventional warfare.