text: Chapter 3
  Army Organizations and Command and Control
  This chapter describes the cyberspace and electromagnetic warfare support available
  to Army maneuver commanders. It describes the roles, responsibilities, and capabilities
  of the United States Army Cyber Command and its subordinate organizations. This
  chapter details the cyberspace electromagnetic activities section and its roles and
  responsibilities. This chapter discusses interactions between the cyberspace
  electromagnetic activities section and other staff sections, including the role of the
  cyberspace electromagnetic activities working group.
  SECTION I – ARMY CYBERSPACE OPERATIONS ORGANIZATIONAL
  STRUCTURE
  3-1. Army maneuver commanders use cyberspace operations and EW to understand the OE, support
  decision-making, and affect adversaries. Maneuver commanders at the brigade combat team level and above
  rely on assigned CEMA sections to leverage Army and joint cyberspace and EW capabilities. During joint
  operations, a corps or division designated as a JTF headquarters or a joint force headquarters combines its
  spectrum management chief with its CEMA section to establish an electromagnetic spectrum operations
  (EMSO) cell to support the joint electromagnetic spectrum operations cell (JEMSOC). Numerous Army and
  joint organizations contribute forces and capabilities for use in cyberspace operations and EW. Commanders at
  corps and below should possess a general understanding of the roles and responsibilities of these organizations
  and how they interact with the units’ CEMA sections.
  3-2. This section provides an overview of Army organizations that provide cyberspace operations and EW
  support to Army commanders. It describes the Army’s Service component command for cyberspace operations,
  United States Army Cyber Command (ARCYBER) and its subordinate elements.
  UNITED STATES ARMY CYBER COMMAND
  3-3. ARCYBER operates and defends Army networks and delivers cyberspace effects against adversaries
  to defend the nation. ARCYBER rapidly develops and deploys cyberspace capabilities to equip our force for
  the future fight against a resilient, adaptive adversary. ARCYBER also integrates intelligence, fires, space,
  psychological operations, strategic communications, public affairs, special technical operations, cyberspace
  operations, electromagnetic warfare, and information operations to allow Army commanders a decisional
  advantage during competition and conflict.
  3-4. ARCYBER protects DODIN-A through DCO-IDM and DODIN operations. Commander, ARCYBER,
  is also the commander of joint force headquarters-cyber (JFHQ-C [Army]). In this role, Commander,
  ARCYBER, possesses the capability to conduct OCO to attack and exploit the enemy upon authorization from
  Unites States Cyber Command (USCYBERCOM). ARCYBER is the Army’s point of contact for reporting and
  assessing cyber incidents and events involving suspected adversary activity. The United States Army Network
  Enterprise Technology Command (NETCOM) and the regional cyber center act as the chief action arms, having
  been delegated operational control and directive authority for cyberspace operations by ARCYBER for DODIN
  operations over all Army networks. ARCYBER serves as the Army’s principal cybersecurity service provider
  and provides program oversight while NETCOM and the regional cyber centers act as the principal executors
  of the program. Units assigned to ARCYBER are—
  * NETCOM.
  * 1st Information Operations Command (Land).