Zippo lighter restoration - US Army lighter brought back to life --- AF invention

I will restore this Zippo lighter someone had found from the ground. It was most likely lost by an US army man years ago, but I don’t think it has been in any war. The lighter is very oxidized and most of the old plating is gone. The insert is in much better condition but it also need a little restoration. Luckily the hinge is not broken so I don’t have to repair it. That is not easy.