A new headquarters, the Defense Language Institute (DLI), was established in Washington, D.C., and the former Army Language School commandant, Colonel James L. Collins, Jr., became the Institute's first director. The Army Language School became the DLI West Coast Branch, and the foreign language department at the Naval Intelligence School became the DLI East Coast Branch. The contract programs were gradually phased out. The DLI also took over the English Language School at Lackland Air Force Base, Texas, which became the DLI English Language Center (DLIELC). During the peak of American involvement in Vietnam (1965–73), the DLI stepped up the pace of language training. While regular language training continued unabated, more than 20,000 service personnel studied Vietnamese through the DLI's programs, many taking a special eight-week military adviser “survival” course. From 1966 to 1973, the institute also operated a Vietnamese branch using contract instructors at Biggs Air Force Base near Fort Bliss, Texas (DLI Support Command, later renamed the DLI Southwest Branch). Vietnamese instruction continued at DLI until 2004. In the 1970s the institute's headquarters and all resident language training were consolidated at the West Coast Branch and renamed the Defense Language Institute Foreign Language Center (DLIFLC). In 1973, the newly formed U.S. Army Training and Doctrine Command (TRADOC) assumed administrative control, and in 1976, all English language training operations were returned to the U.S. Air Force, which operates DLIELC to this day. The DLIFLC won academic accreditation in 1979 from the Western Association of Schools and Colleges, and in 1981 the position of academic dean (later called provost) was reestablished. In the early 1980s, crowding and living conditions at the Monterey location forced the Institute to open two temporary branches: a branch for air force enlisted students of Russian at Lackland Air Force Base, Texas (1981–1987), and another for army enlisted students of German, Korean, Russian and Spanish at the Presidio of San Francisco (1982–1988). There were only enlisted male and female students at the Presidio, primarily from the Military Occupational Specialty's of Military Intelligence and Military Police with a small number of Army Special Forces. As a result of these conditions, the institute began an extensive facilities expansion program on the Presidio. In 2002 the Accrediting Commission for Community and Junior Colleges accredited the institute as an associate degree-granting institution.