President Donald Trump is expected to sign an executive order today that allows the use of the title "War Department" as a secondary designation for the US Department of Defense, the largest institution of the US government.
The change also paves the way for Defense Secretary Pete Hegseth to refer to himself as “Secretary of War” in official communications and ceremonies. Hegseth posted the caption “DEPARTMENT OF WAR” on the X platform (formerly Twitter) on Thursday.
While a permanent renaming of the department requires approval from Congress, the White House announced that the executive order will direct Hegseth to begin the process for the change.
The Department of Defense, often referred to as the "Pentagon" because of the shape of its building in Washington, D.C., retained the name "War Department" until 1949.
Historians explain that the name was changed after World War II to reflect the US's commitment to preventing conflict, especially in the age of nuclear weapons.
President Trump first mentioned the idea of restoring the name in June, suggesting that the previous change was made for "political" reasons.
Reverting this more bellicose name could cost the government tens of millions of dollars, due to the need to replace the logo and inscriptions on military buildings and bases around the world.
Earlier this year, Hegseth canceled President Joe Biden's effort to rename nine U.S. military bases named after Confederate leaders, a process that was expected to cost $39 million.