Original: DIA Public Web Page , This Is DIA The Defense Intelligence Community is headed by the DIA , through its Director ( who chairs the Military Intelligence Board ) , and coordinates the activities of the Army , Navy , Marine Corps , and Air Force intelligence components .
Simplified: The Defense Intelligence Community is headed by the DIA , through its Director ( who chairs the Military Intelligence Board ) , and coordinates the activities of the Army , Navy , Marine Corps , and Air Force intelligence components .