The Defense Intelligence Agency (DIA) provides defense intelligence to war fighters, planners, and policy makers. Dia is free (open source) drawing software. Sketch your favorite structured diagrams! Windows version available as a free download. The Defense Intelligence Agency (DIA) provides military intelligence to warfighters, defense policymakers and force planners in the Department of Defense and the Intelligence Community in support of U.S. military planning and operations, and weapon systems acquisition. Dia pulls together the places where work is actually happening (like GitHub and Notion) in your tab bar. Click once and land directly in the right PR, spec, or draft. Experience luxury & convenience at Denver International Airport. Enjoy a variety of shops, restaurants & amenities for an enjoyable travel experience. Since its creation in 1961, DIA has been the Nation's premier all-source military intelligence organization. Our team at DIA deploys globally, alongside warfighters and interagency partners, to defend America's national security interests. The Defense Intelligence Agency (DIA) is an intelligence agency and combat support agency of the United States Department of Defense (DoD) specializing in military intelligence.