Imagine how much jungle junk was left after 30+days of killing was over on Iwo Jima. Web gear, gun stocks, canteens, butt packs, bandoleers, torn utilities, millions of shot cases, M1icon clips, bloody bandages, human remains, ration cans, dud mortar and gun rounds, wrecked tanks, trucks and aircraft.

In Vietnam the A Shau valley was the site of several huge battles, the NVA left all the jungle junk for the Americans to find whenever they returned. Years later the same mess still there. That would freak people out.