The **Defense Intelligence Agency (DIA)** is a premier organization within the U.S. Department of Defense, specializing in military intelligence to support national security and defense operations. Established in 1961, the DIA's primary mission is to provide intelligence on foreign militaries and their operating environments to prevent and decisively win wars[1][2]. ### Key Functions - **Intelligence Production**: The DIA produces, analyzes, and disseminates military intelligence to combat and non-combat missions. It serves as the nation's primary manager and producer of foreign military intelligence[6]. - **Human Intelligence (HUMINT)**: The agency excels in HUMINT through its Defense Clandestine Service, which conducts clandestine espionage activities globally[3]. - **Measurement and Signature Intelligence (MASINT)**: DIA is the national manager for MASINT, focusing on the collection and analysis of physical attributes of targets[1]. ### Current Status Today, the DIA employs over 16,500 personnel worldwide, operating in a global environment with a presence in over 160 countries[2][5]. It supports U.S. military planning, operations, and weapon systems acquisition by providing critical intelligence to warfighters, defense policymakers, and force planners[2][6]. ### Notable Aspects - **Global Presence**: The DIA maintains defense attaché offices in over 140 countries, facilitating diplomatic relations and intelligence collection[3]. - **Career Opportunities**: The agency offers diverse career paths for civilians and military personnel, with a focus on professional development[2]. - **Technological Advancements**: DIA integrates technology to enhance intelligence gathering, focusing on scientific and technical aspects of intelligence[6]. The DIA plays a crucial role in the U.S. Intelligence Community, advising the Secretary of Defense and the Chairman of the Joint Chiefs of Staff on military intelligence matters[5]. Its contributions are vital in supporting U.S. national security and defense strategies globally.