God knows I want it to be true, but that 10th Mt patch is on the right shoulder. That means it's a combat patch (the unit that particular Soldier was deployed to a combat zone with). He can wear it on the right shoulder forever. The patch we wear on our LEFT shoulder is the unit we're in NOW. So this troop was deployed with 10th Mt at some point in his career, but we'd have to see the left shoulder patch to know what unit he's in currently.