S4SMD-DEL15 — Space Delta 15

S4SMD-DEL15 governs the mission, command structure, and responsibilities of Space Delta 15 and Combat Delta 1-15.

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  • Publication number: S4SMD-DEL15
  • Title: SPACE DELTA 15
  • Date: 2026-02-27

View S4SMD-DEL15 on armypubs.army.mil


It describes DEL 15’s command and control forces, organizational elements, applications, and relationship to USSPACECOM. It requires assigned units to comply with applicable guidance, assess readiness, protect resources, and provide combat-ready forces.

Applies to: This mission directive applies to DEL 15 and subordinate active-duty units and personnel.

Topics covered

  • Command and control forces
  • Space Mission Task Force 1
  • National Space Defense Center
  • Space operations applications
  • Tactical control
  • Unit readiness
  • Government funds
  • Operational priorities

Questions and answers

What is DEL 15’s mission for USSPACECOM?

DEL 15 organizes, trains, and equips combat ready USSF command and control (C2) forces for United States Space Command (USSPACECOM) as part of S4S. (paragraph 1)

What is the organization of DEL 15?

DEL 15 (CDEL 1-15 when presented) includes a Delta Commander (dual-hatted as the NSDC Director), a Senior Enlisted Leader, and multiple S-Staff Directorates. (paragraph 1)

What applications does DEL 15 operate?

DEL 15 (CDEL 1-15 when presented) operates multiple applications utilized for space operations and cyberspace defense of C2 capabilities. (paragraph 1)

Who is DEL 15 responsible to?

DEL 15 (CDEL 1-15 when presented) is responsible to the Commander, United States Space Forces-Space - Combined/Joint Force Space Component Commander (S4S/CCC/JFSCC). (paragraph 2)

How often must DEL 15 validate its JMETL/METL alignment?

Ensure unit Joint Mission Essential Task List/Mission Essential Task List (JMETL/METL) is aligned with this Mission Directive and assigned missions through at least an annual validation. (paragraph 3)

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