Stingers aren't the only relevant technology, US isn't the only relevant producer of such technology, and the review of the Ukraine conflict has only just begun. Perhaps they'll find out that building obsolescent things like Stingers have a higher ROI than building obsolescent things like manned aircraft?<p>If the goal of the armed forces are to win or survive a conflict, it's not the weapon system that's important it's the battlefield and logistical problems that's important. The argument about 100 stealth fighters vs. 350 F-16's vs. 1000 drones. Or, the ability to provide food and fuel without interruption.