Pilots work in the cockpit of an AWACS plane at Melsbroek military airport in Melsbroek, Belgium, Wednesday, Nov. 27, 2019. As Russia’s military buildup near Ukraine accelerated early this year, military planners at NATO began preparing to dispatch scores of fighter jets and surveillance aircraft into the skies near Russia and Ukraine. It was a warning to Moscow not to make the mistake of targeting any member country. (AP Photo/Virginia Mayo, File)