A more thorough explanation:

Definition: DISA stands for Defense Information Systems Agency. It is a United States Department of Defense agency responsible for providing information technology and communications support to the military and other government agencies.

Example: DISA provides secure communication services for the military, such as email, video conferencing, and messaging. They also manage the Defense Information System for Security (DISS), which is used to process security clearances for military personnel and contractors.

Explanation: The example illustrates how DISA provides information technology and communication support to the military. They offer secure communication services that are essential for military operations and manage a system that processes security clearances for military personnel and contractors. This ensures that only authorized individuals have access to sensitive information and resources.