# Defense Information Systems Agency **Aliases:** DISA **Entity class:** Department of Defense combat support agency ## Definition The **Defense Information Systems Agency (DISA)** provides enterprise information, communications, computing, cloud, cybersecurity, and command-support capabilities for the Department of Defense and national leadership. ## Relationships - **supports and operates portions of:** [[wiki/Department of Defense Information Network|DoDIN]]. - **enterprise cloud role:** [[wiki/Joint Warfighting Cloud Capability|JWCC]] and cloud accelerators. - **enables:** [[wiki/CJADC2|CJADC2]], Zero Trust, and joint command-and-control services. - **belongs to:** [[wiki/United States Department of Defense|Department of Defense]]. ## Sources / Provenance - [DISA — About](https://www.disa.mil/About) - [DISA — FY 2026 Budget Estimates](https://comptroller.defense.gov/Portals/45/Documents/defbudget/FY2026/budget_justification/pdfs/01_Operation_and_Maintenance/O_M_VOL_1_PART_1/DISA_OP-5.pdf)