 According to old Spanish censuses, around 1/3rd of the population of Luzon are admixed with either Spanish or Latino descent (Mostly in Cavite and Manila) Most Americans have settled in Central Luzon's highly urbanized cities of Angeles and Olongapo due to the former presence of the U.S. air and naval bases in there, while a majority of the Koreans and Japanese have mainly settled in the major cities and towns.Almost all of the languages of Luzon belong to the Philippine group of the Malayo-Polynesian branch of the Austronesian language family.Major regional languages include