Japan formally surrendered in August of 1945 ending World War II. Some Japanese soldiers did not believe or did not know Japan had surrendered and continued to fight. When did the last of these Japanese soldiers (holdouts) surrender?

History Trivia: Japan formally surrendered in August of 1945 ending World War II. Some Japanese soldiers did not believe or did not know Japan had surrendered and continued to fight.  When did the last of these Japanese soldiers (holdouts) surrender?