For intelligence purposes, a US person is defined as one of the following: (1) a US citizen; (2) an alien known by the intelligence agency concerned to be a permanent resident alien; (3) an unincorporated association substantially composed of US citizens or permanent resident aliens; or (4) a corporation incorporated in the United States, except for those directed and controlled by a foreign government or governments. (JP 2-01.2)
US PERSON
Meaning of US PERSON in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012