; (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). (e) Definitions In this section: (1) High traffic areas The term high traffic areas means sectors along the northern, southern, or coastal border that— (A) are within the responsibility of U.S. Customs and Border Protection; and (B) have significant unlawful cross-border activity. (2) Situational awareness defined 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 ). . 102. Comprehensive southern border strategy (a) Comprehensive strategy (1) Requirement Not later than 12 months after the date of the enactment of this Act, 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. (2) Contents The strategy submitted under paragraph (1) shall include— (A) a list of known physical barriers, technologies, tools, and other devices that can be used to achieve and maintain situational awareness and operational control (as such term is defined in section 2(b) of the Secure Fence Act of 2006 ( 8 U.S.C. 1701 note; Public Law 109–367 )) along the southern border; (B) a projected per mile cost estimate for each physical barrier, technology, tool, and other device included on the list required under paragraph (1); (C) a detailed account of which type of physical barrier, technology, tool, or other device the Department believes is necessary to achieve and maintain situational awareness and operational control for each liner mile of the southern border