10 U.S.C. § 7776Section
§ 7776. Emergency construction: fortifications
If in an emergency the President considers it urgent, a temporary fort or fortification may be built on private land if the owner consents in writing.
(Aug. 10, 1956, ch. 1041, 70A Stat. 270, §4776; Pub. L. 91–393, §5, Sept. 1, 1970, 84 Stat. 835; renumbered §7776, Pub. L. 115–232, div. A, title VIII, §808(d), Aug. 13, 2018, 132 Stat. 1839.)