#combat tree

This next-level gadget gave American fighter pilots a serious advantage over the North Vietnamese.

Imagine, as a fighter pilot, being able to see your enemy without them knowing you’re even in the area. Sounds like some newfangled stealth capability you’d expect to come stock on a fifth generation fighter, like the F-22 Raptor or the F-35 Lightning II, right? But what if I were to tell you that the US Air Force possessed such a capability as far back as the early 1970s, far before the F-22 and…