War Department

The War Department was a key U.S. government agency responsible for managing the country’s military operations and affairs, particularly during the 19th and early 20th centuries. Established in 1789, it oversaw the Army and coordinated military policies, strategies, and logistics. In 1947, it was reorganized into the Department of Defense, which now encompasses all branches of the U.S. military, reflecting a broader scope of national defense responsibilities. The War Department played a significant role in shaping U.S. military history and policy during its existence.