Found this interesting site while looking for info on Japanese soldiers in Thailand :
Japanese Holdouts: Registry
Just one extract :
June 30 1951 - Anatahan Island
A group of stranded survivors of a Japanese vessel sunk by the American military found their way to the island of Anatahan, 75 nautical miles north of Saipan. The island's coast line is precipitous with landing beaches on the northern and western shore and a small sandy beach on the southwest shore. It's steep slopes are furrowed by deep gorges covered by high grass. This brooding cone jutting from the sea floor is a large, extinct volcano with two peaks and a grass covered flat field, the final resting place for a B-29 Superfortress that crashed upon returning from a bombing mission over Nagoya, Japan on January 3, 1945 killing the aircraft's crew.
By 1951 the Japanese holdouts on the island refused to believe that the war was over and resisted every attempt by the Navy to remove them. This group was first discovered in February 1945, when several Chamorros from Saipan were sent to the island to recover the bodies of the Saipan based B-29, T square 42, from the 498th Bomb Group, 875th Squadron, 73rd Wing under the command of Richard Carlson Stickney, Jr. The Chamorros reported that there were about thirty Japanese survivors from three Japanese ships sunk in June 1944, one of which was an Okinawan woman.
Personal aggravations developed as a result of being too long in close association within a small group on a small island and also because of tuba drinking. The presence of only one woman, Kazuko Higa, caused great difficulty as well. Six of eleven deaths that occurred among the holdouts were the result of violence. One man displayed thirteen knife wounds. Ms. Higa would, from time to time, transfer her affections between at least four of the men after each mysteriously disappeared as a result of "being swallowed by the waves while fishing." In July 1950, Ms. Higa went to the beach when an American vessel appeared off shore and asked to be removed from the island. She was taken to Saipan aboard the Miss Susie and, upon arrival, informed authorities that the men on the island did not believe the war was over.
The rest of this account is on the link given above.