nationals but not citizens of the united states at birth

nationals but not citizens of the united states at birth Sec. 308. Unless otherwise provided in section 391 of this title, the following shall be nationals, but not citizens, of the United States at birth: (1) A person born in an outlying possession of the United States on or after the date of formal acquisition of such possession; (2) A person born outside the United States and its outlying possessions of parents both of whom are nationals, but not citizens, of the United States, and have had u residence in the United States, or one of its outlying possessions prior to the birth of such person; and (3) A person of unknown parentage found in an outlying possession of the United States while under the age of five years, until shown, prior to his attaining the age of twenty-one years, not to have been born in such outlying possession.