<Li> Jump up ^ "Military". uscis.gov . Archived from the original on 19 March 2018 . Retrieved 28 April 2018 . </Li> <Li> Jump up ^ INA § 208 (b) (2) (A) </Li> <Li> ^ Jump up to: "Chapter 2: LPR Admission for Naturalization - Exceptions". U.S. Citizenship and Immigration Services . Archived from the original on 2013 - 09 - 30 . Retrieved 2013 - 09 - 25 . </Li> <Li> ^ Jump up to: "Title 8: Aliens and Nationality - PART 325: NATIONALS BUT NOT CITIZENS OF THE UNITED STATES; RESIDENCE WITHIN OUTLYING POSSESSIONS". Electronic Code of Federal Regulations (e-CFR). United States Government Publishing Office . Archived from the original on February 27, 2017 . Retrieved February 27, 2017 . </Li>

What are the requirements to be a united states citizen