In recent years, challenges concerning the use of weaponized unmanned systems (WUS)1 – airborne, seaborne or on the ground – have taken the world stage in political and military planning efforts. This trend will continue over the next decade, as these weapon systems have inevitable implications for security and defense strategy among major international actors and smaller actors alike. Addressing the challenges to global security and stability will require determined action by national actors, non-governmental organizations and intergovernmental organizations. This report presents two hypothetical scenarios and argues that the state of international peace by the year 2025 will depend largely on whether state and non-state actors are capable of designing an effective political and legal framework for regulating the use of WUS without infring