The convergence of the operations conducted by SOF and civilian law enforcement agencies (LEAs)-especially Special Weapons and Tactics (SWAT) units-has generated special training requirements. This monograph examines the elements precipitating this circumstance, provides SOF with a better understanding of changing domestic threats and operational capabilities of LEAs, and draws insights from the similarities and challenges imposed by transnational gangs and terrorists both domestically and abroad. The author argues that SOF needs new skills and training to assume the law-enforcement-like missions they are being assigned. In addition, the monograph provides leaders of major LEAs a better understanding of special operations and potentially facilitates a basis for future cooperation and mutual support. The forward-looking monograph also argues that the public attitude toward conflict is changing and perhaps the legal underpinnings on use of force as well.