https://crsreports.congress.gov/product/pdf/IF/IF11426
https://crsreports.congress.gov/product/pdf/R/R47188
https://dod.defense.gov/Portals/1/Documents/Policy
https://fas.org/wp-content/uploads/2021/08/Reevaluating-U.S.-Military-Use-of-Drone-Technology_final.pdf
https://media.defense.gov/2018/Nov/05/2002059511/-1/-1/1/GUIDANCE-FOR-THE-DOMESTIC-USE-OF-UNMANNED-AIRCRAFT-SYSTEMS-IN-US-NATIONAL-AIRSPACE.PDF
https://media.defense.gov/2021/Jan/07/2002561080/-1/-1/1/DEPARTMENT-OF-DEFENSE-COUNTER-SMALL-UNMANNED-AIRCRAFT-SYSTEMS-STRATEGY.PDF
https://media.defense.gov/2024/Nov/14/2003583603/-1/-1/0/FY24-CONSOLIDATED-ANNUAL-REPORT-ON-UAP-508.PDF
https://nps.edu/documents/115559645/122225231/2021
https://rosap.ntl.bts.gov/view/dot/18248
https://www.cbo.gov/system/files/2021-06/57090-UAS.pdf