President Donald J. Trump has issued an executive order authorizing the use of the title "Department of War" as a secondary designation for the Department of Defense. The order, dated September 5, 2025, allows the Secretary of Defense to also be recognized as the Secretary of War in official correspondence, public communications, ceremonial contexts, and non-statutory documents within the executive branch.
The move references historical precedent. President George Washington established the original Department of War in 1789 to oversee military and naval affairs. According to the order, "It was under this name that the Department of War, along with the later formed Department of the Navy, won the War of 1812, World War I, and World War II, inspiring awe and confidence in our Nation’s military, and ensuring freedom and prosperity for all Americans." The statement continues: "The Founders chose this name to signal our strength and resolve to the world. The name 'Department of War,' more than the current 'Department of Defense,' ensures peace through strength, as it demonstrates our ability and willingness to fight and win wars on behalf of our Nation at a moment’s notice, not just to defend."
Under Section 2(a) of the order: "The Secretary of Defense is authorized the use of this additional secondary title — the Secretary of War — and may be recognized by that title in official correspondence, public communications, ceremonial contexts, and non-statutory documents within the executive branch." Additionally, subordinate officials may use corresponding titles such as Deputy Secretary of War or Under Secretary of War where appropriate.
All executive departments and agencies are directed to recognize these secondary titles in their internal and external communications as long as there is no confusion regarding legal or statutory obligations. Statutory references to existing titles will remain unchanged until further legislative action is taken.
Within 30 days from the date of this order, a notification must be submitted to Congress listing any office or component using a secondary Department of War designation. Within 60 days, recommendations are required for actions needed to permanently change the department's name through legislative or executive means.
The order specifies that it should not affect existing authorities granted by law nor create any enforceable rights or benefits against any U.S. entity or person. Publication costs will be covered by what is now authorized for reference as both the Department of Defense and Department of War.
