; or (II) affect the eminent domain laws of the United States or of any State. ; (3) in subsection (c)(1), by inserting and, pursuant to subsection (d), the installation, operation, and maintenance of technology, after barriers and roads ; and (4) by adding at the end the following new subsections: (e) Installation, operation, and maintenance of technology (1) In general Not later than January 20, 2021, the Secretary of Homeland Security, in carrying out subsection (a), shall deploy the most practical and effective technology available along the United States border for achieving situational awareness and operational control of the border. (2) Technology defined In this subparagraph, the term technology includes border surveillance and detection technology, including— (A) radar surveillance systems; (B) Vehicle and Dismount Exploitation Radars (VADER); (C) 3-dimensional, seismic acoustic detection and ranging border tunneling detection technology; (D) sensors; (E) unmanned cameras; (F) man-portable and mobile vehicle-mounted unmanned aerial vehicles; and (G) any other devices, tools, or systems found to be more effective or advanced than those specified in subparagraphs (A) through (F). (f) Definitions In this section, the term situational awareness has the meaning given the term in section 1092(a)(7) of the National Defense Authorization Act for Fiscal Year 2017 ( Public Law 114–328 ). . 4. Comprehensive southern border strategy (a) In general Not later than 12 months after the date of the enactment of this section, the Secretary shall submit to the Committee on Homeland Security of the House of Representatives and the Committee on Homeland Security and Governmental Affairs of the Senate a comprehensive Southern border strategy. (b) Contents The strategy submitted under subsection (a) shall include— (1) a list of known physical barriers, technologies, tools, and other devices that can be used to achieve and maintain situational awareness and operational control along the southern border