Attachment 1 DoW CIO Memo 20260522 1.pdf

CHIEF INFORMATION OFFICER

DEPARTMENT OF WAR

6000 Defense Pentagon

Washington , D.C. 20301-6000

MAf 2 2 2026

MEMORANDUM FOR SENIOR PENTAGON LEADERSHIP

COMMANDERS OF THE COMBATANT COMMANDS

DIRECTOR, DEFENSE INFORMATION SYSTEMS AGENCY

SUBJECT: Combatant Command Network Optimization Execution Guidance

References: (a) "Fourth Estate Network Optimization Execution Guidance" memorandum, dated August 15, 2019

(b) Secretary of War Memorandum, "Implementation of Executive Order 14222 - Department of Government Efficiency Cost Efficiency Initiative," May 27, 2025

Based on progress achieved under the Fourth Estate Network Optimization initiative, reference (a), and consistent with reference (b), I direct further consolidation of combatant command (CCMD) common use IT services and assets identified in Attachment 1 to a Single Service Provider (SSP). Within 90 days from memorandum signature, the Defense Information Systems Agency (DISA), the designated SSP, shall provide the DoW CIO a comprehensive briefing detailing the program scope, execution milestones, resource requirements, and baseline service delivery model. The resource requirement shall include an estimate of resources, personnel, and funding requirements associated with the transfer of Common Use IT services and assets to the SSP. The Joint Staff J6 shall facilitate a forum to brief appropriate combatant command and military service leadership.

DISA, in collaboration with the Joint Staff J6 and my office, shall initiate transition of CCMDs from legacy common use IT services and assets to the SSP environment, upon Do W CIO approval of the plan DISA will execute migrations for all unclassified (NIPR) and classified (SIPR) common use IT across Fiscal Years 2027 through 2028. To ensure successful transitions to the SSP, CCMD and Combatant Command Support Agents (CCSA) shall respond to DISA requests for information and other discovery and migration data calls in accordance with Attachment 2. DISA is authorized to coordinate CCMD actions for all common use IT services and assets designated for transfer, including establishing memorandums of understanding with the CCMDs defining authorizing officials, roles, and responsibilities and memorandums of agreement to transfer funds to support common use IT from the CCSA to DISA.

This consolidation is essential to advancing enterprise modernization; improving operational efficiency; and ensuring resilient, lethal, and mission-ready network capabilities.

The SSP environment ensures CCMDs operate within a zero-trust enabled cybersecurity environment and with a uniform user experience across all commands. My point of contact for this matter is Mr. Carl Porter at email: carl.d.porter4.civ@mail.mil, (571) 372-7761.

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~ rt-/ttJav Kirsten A. Davies

Attachments:

As stated

ATTACHMENT 1: COMBATANT COMMAND OPTIMIZATION LIST

1. U.S. Africa Command (USAFRICOM)

2. U.S. Central Command (USCENTCOM)

" U.S. European Command (USEUCOM) .) .

4. U.S. Indo-Pacific Command (USINDOPACOM)

5. U.S. Northern Command (USNORTHCOM)

6. U.S. Southern Command (USSOUTHCOM)

7. U.S. Space Command (USSPACECOM)

8. U.S. Special Operations Command (USSOCOM)

9. U.S. Strategic Command (USSTRA TCOM)

10. U.S. Transportation Command (USTRANSCOM)

11 . U.S. Cyber Command (USCYBERCOM)

ATTACHMENT 2: DEFINITIONS

Determinations for common-use Information Technology (IT) will be negotiated with the relevant Combatant Commands and will address functional areas that include, but are not limited to, the following:

• End User Support;

• Network Access Services;

• Network Device Procurement;

• Endpoint Services;

• File Storage;

• Message and Directory Services;

• Cyber Security;

• IT Service Management;

• Virtual Desktop Service; and

• Application Packaging and Deployment.

Legacy Common Use IT refers to the information technology services and infrastructure that a Combatant Command independently operated and maintained prior to transitioning to the DISA Single Service Environment.