Should've seen the stuff we left behind in 'Nam when we bugged out! Hueys, Chinooks, various fixed-wing A/C....all now (or then) bearing the red star. Not to mention all the M-16s, M-60s, M-79s, etc., etc.
Some years back an enhanced tracking program put into place by the FAA; was due to many helicopter and aircraft parts that were being smuggled into the States from Vietnam and Laos. The parts were being stripped from the abandoned aircraft and dug up in the jungle and sold as new, overhauled and reconditioned to unsuspecting buyers. Many of the parts; tagged as overhauled; had the signature of a licensed individual that was deceased. A lot of these parts were traced to a household garage in Miami, Florida. Several arrests were made, but not before a fatal accident happened; which lead to the investigation and the enhanced program.
During my years living on the Island of Guam...the locals; many of which were my close friends, told me many stories and showed me locations in jungle areas between the runways on North West Field, where they spoke of gigantic, long wide, trenches dug into the Island's volcanic rock foundation and every imaginable kind of airplane, truck, jeep and equipment was pushed into the trenches and buried. I believe there was substantial truth in their stories. My son and I spent untold hours hunting wild hogs and Sambar Elk in these areas and found altimeters, horizon gyros and all kinds of instrumentation pieces. We uncovered remnants of aluminum aircraft structures, like skins, ribs and bulkheads. The Island's salt air had all but reduced them to powder. To this day...I still think of what all may have been buried there.