In England,we have lots of WW2 bombers buried under our fields.Some were casualties,and crashed while returning to base, but many aircraft were simply buried in trenches not long after the war ended, mostly in East Anglia ( Norfolk & Suffolk ), as it was too expensive to keep them going. I think the types / marques covered included most of the aircraft operated by the Royal Air Force, possibly including the B 17 "Flying Fortresses" that my Dad flew in. Also, large numbers of Naval aircraft were shipped out to Australia in the build-up to the Allied invasion of Japan.Following the Japanese surrender, they were taken out of their crates,assembled, had their engines run & tested, and were then loaded aboard various British carriers.As soon as these ships were a few miles out to sea, all of these aircraft, Corsairs, Hellcats, Avengers,etc.,,all brand new & straight from the factory, were pushed over the side ,into the sea !!! What a waste !! But that's politics for you !! In more modern times----after the Falklands War,between Britain & Argentina, the British government spent millions of pounds on re-building the airfield at Port Stanley. When the operation was complete, the government was faced with the cost of bringing back all the heavy plant,like bulldozers,trucks,earth-movers,cranes etc to Britain. So they decided it was too expensive, and the airfield constructors were told to excavate huge trenches and bury EVERYTHING underground !! What a waste !! But-----That"s politics for you !!