Battle of Biak,

 https://en.wikipedia.org/wiki/Biak

Firaun Koibur travels across Biak to search for World War II relics.Ulet Ifansasti for The New York Times

Thousands of U.S. and Japanese soldiers died in the Battle of Biak, a fierce World War II fight. Collectors are still finding remnants on the remote Indonesian island, which could bring solace to the families of U.S. soldiers whose remains are still missing.