DLNSEO provides strategic direction, supports policy development, and provides programmatic oversight to the Military Departments, Defense Agencies, and the Combatant Commands on present and future requirements related to language, regional expertise, and culture; and manages a portfolio of programs that provide language support to the Department.
 
In 2023 DLNSEO celebrated 30 Years of the National Security Education Program. The video below was produced to commemorate this anniversary and discuss the impact of these programs.