The Defense Language Office is an office within the United States Department of Defense. It was established in May 2005, within the Office of the Under Secretary of Defense (Personnel and Readiness). It was created by the Fiscal Year 2005 National Defense Authorization Act, which accompanied the House Report 108-491, "to provide oversight and execution of the Defense Language Transformation Roadmap." On February 6, 2012, the Defense Language Office and the National Security Education Program were merged to form the Defense Language and National Security Education Office.