How did the department of war change in terms of its name and organization? write a full paragraph that summarizes what you learned in this assignment. answer the department of war was established in 1789 to manage the us military. the department established an official army instead of relying on militias. the national reorganization act of 1947 changed this division of the cabinet by creating the department of defense. it oversees the nation's military actions. in 2002, the department of homeland security was formed to focus on safety within the nation's borders.

What was known as "The War Department" had a period of existence from August 7, 1789, in its early origins, it was also named the "War Office" during the revolution; and it was located in Philadelphia, and then moved to Washington D.C. in the early 1800s.

It was led by "The Secretary of War" who was member of the United States President's Cabinet, starting with George Washington's administration, until September 18, 1947. At this point, it got divided into Department of the Army and Department of the Air Force coming together to the Department of the Navy conforming the new "National Military Establishment" (NME), and in 1949 was renamed "the United States Department of Defense".

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