This manual, Joint Publication JP 3-12 Cyberspace Operations June 2018, discusses the nature of Cyberspace, describes how to integrate Cyberspace Operations with other operations, discusses Cyberspace Operations Forces, outlines challenges to the Joint Force's use of Cyberspace, describes Cyberspace Operations core activities, outlines authorities, roles, and responsibilities related to cyberspace operations, and discusses planning, coordination, execution, and assessment of Cyberspace Operations. Cyberspace operations (CO) is the employment of cyberspace capabilities where the primary purpose is to achieve objectives in or through cyberspace. This publication focuses on military operations in and through cyberspace; explains the relationships and responsibilities of the Joint Staff (JS), combatant commands (CCMDs), United States Cyber Command (USCYBERCOM), the Service cyberspace component (SCC) commands, and combat support agencies; and establishes a framework for the employment of cyberspace forces and capabilities.