; and (5) the United States must partner with Mexico and Canada to combat fentanyl trafficking through institution building, the dismantling of cartels, and seizures of fentanyl in Mexico, Canada, and intrastate transit zones. (b) Development of strategy to counter fentanyl trafficking and report (1) Strategy (A) In general Not later than 120 days after the date of the enactment of this Act, the Secretary of Defense, in coordination with other Federal agencies as the Secretary considers appropriate, shall develop and submit to the appropriate congressional committees a strategy to use existing authorities, including the authorities under section 124 of title 10, United States Code, as appropriate, to target, disrupt, or degrade threats to the national security of the United States caused or exacerbated by fentanyl trafficking. (B) Contents The strategy required by subparagraph (A) shall outline how the Secretary of Defense will— (i) leverage existing authorities regarding counterdrug and counter-transnational organized crime activities with a counter-fentanyl nexus to detect and monitor activities related to fentanyl trafficking; (ii) support operations to counter fentanyl trafficking carried out by other Federal agencies, State, Tribal, and local law enforcement agencies, or foreign security forces; (iii) coordinate efforts of the Department of Defense for the detection and monitoring of aerial, maritime, and surface traffic suspected of carrying fentanyl bound for the United States, including efforts to unify the use of technology, surveillance, and related resources across air, land, and maritime domains to counter fentanyl trafficking, including with respect to data collection, data processing, and integrating sensors across such domains