The Eisenhower Schools course of instruction includes many guest speakers and is complemented by a series of distinguished lecture program (DLP) presentations sponsored and scheduled by the National Defense University (NDU). As an enhancement to the core and elective courses, NDU sponsors joint lectures to permit national leaders to share their considerable insights and experience with the students of both the Eisenhower School and NWC. This program consists of a number of lectures scheduled throughout the academic year. High-level government officials and military commanders are invited to address joint sessions of NWC and the Eisenhower School, usually in Lincoln Hall auditorium. Potential lecturers in the DLP are such dignitaries as the Secretaries of Defense and State, the Chairman of the Joint Chiefs of Staff, the Army and Air Force Chiefs of Staff, the Chief of Naval Operations, the Commandants of the U.S. Marine Corps and the U.S. Coast Guard, the National Security Advisor to the President, the Chairman of the NATO Committee, the Combatant Commanders, and the Supreme Allied Commander, Europe. Service dress uniform or civilian suit is required attire for all DLPs.