RIP, we should be doing more to locate and return our MIA's, see Navy Times has a header that we've recovered a Navy aviator from Pacific but had to go on line to read and I could not find.
We are George, we are the only nation hell bent on finding MIA's, no one left behind. There is funding granted every year for MIA search teams.
I had my own experience with both German and British MIAs while I was in Europe. They have no active search teams but authorities are called in when one is found accidently for identification and removal. The USA have the only budgeted MIA search teams. Mostly are in SE Asia now but Europe and the Pacific has not been forgotten.