On This Day
·

US War Department establishes a regular army

The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department responsible for the operation and...

The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department responsible for the operation and maintenance of the United States Army. It also had responsibility for naval affairs from 1794 until the establishment of the Department of the Navy in 1798, and for most non-naval air forces until the creation of the Department of the Air Force on September 18, 1947.

The secretary of war, a civilian with such responsibilities as finance and purchases and a minor role in directing military affairs, headed the War Department throughout its existence.

The War Department existed for 158 years, from August 7, 1789, to September 18, 1947, when, under the National Security Act of 1947, it split into the...

Historical Significance

The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department responsible for the operation and maintenance of the United States Army.

Events Before

  1. Emperor Joseph II's order for the Jews of Galicia, Austria, to adopt family names comes into effect

    Emperor Joseph II's order for the Jews of Galicia, Austria, to adopt family names comes into effect

  2. First elements of the First Fleet, carrying 736 convicts from England to Australia, arrive at Botany Bay to establish a

    First elements of the First Fleet, carrying 736 convicts from England to Australia, arrive at Botany Bay to establish a penal colony

  3. Captain Arthur Phillip and British colonists hoist the Union Flag at Sydney Cove, New South Wales, now celebrated as Aus

    Captain Arthur Phillip and British colonists hoist the Union Flag at Sydney Cove, New South Wales, now celebrated as Australia Day; referred to as Invasion Day by First Nations people

  4. US Constitution comes into effect when New Hampshire is the 9th state to ratify it

    The United States Constitution has served as the supreme law of the United States since taking effect in 1789.

  5. Prussia joins the Anglo-Dutch alliance to form the Triple Alliance to prevent the spread of the Russo-Swedish War of 178

    Prussia joins the Anglo-Dutch alliance to form the Triple Alliance to prevent the spread of the Russo-Swedish War of 1788-90

Events After

  1. First US President George Washington delivers the first State of the Union address

    The 1790 State of the Union Address was the inaugural State of the Union address, delivered by President George Washington to the United States Congress on January 8, 1790, at the Senate Chamber of…

  2. Wolfgang Amadeus Mozart's opera "Cosi Fan Tutte" premieres at the Burgtheater in Vienna, Austria

    Wolfgang Amadeus Mozart's opera "Cosi Fan Tutte" premieres at the Burgtheater in Vienna, Austria

  3. King Gustav III leads Swedish naval forces to victory over the Russian Baltic fleet during the Second Battle of Svensksu

    King Gustav III leads Swedish naval forces to victory over the Russian Baltic fleet during the Second Battle of Svensksund, destroying or capturing one-third of the Russian ships and ending the Russo-Swedish War

  4. French Revolution: The Civil Constitution of the Clergy is adopted, putting the Catholic Church in France under the cont

    French Revolution: The Civil Constitution of the Clergy is adopted, putting the Catholic Church in France under the control of the state

  5. Danish Crown Prince Frederick (Later Frederick VI) marries his cousin Marie Sophie of Hesse-Kassel at Gottorp Castle

    Danish Crown Prince Frederick (Later Frederick VI) marries his cousin Marie Sophie of Hesse-Kassel at Gottorp Castle

More from the 1780s

John Walter publishes the first issue of his newspaper "The Daily Universal Register," which is renamed "The Times" of L

John Walter publishes the first issue of his newspaper "The Daily Universal Register," which is renamed "The Times" of London in 1788

Emperor Joseph II's order for the Jews of Galicia, Austria, to adopt family names comes into effect

Emperor Joseph II's order for the Jews of Galicia, Austria, to adopt family names comes into effect

Future US Chief Justice of the Supreme Court John Marshall (27) weds Mary Willis Ambler (16) at his cousin's home in Han

Future US Chief Justice of the Supreme Court John Marshall (27) weds Mary Willis Ambler (16) at his cousin's home in Hanover County, Virginia, until her death in 1831

British naval expedition led by Benedict Arnold burns Richmond, Virginia

The military career of Benedict Arnold in 1781 consisted of service in the British Army.

Frequently Asked Questions

What happened on September 29, 1789?
The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department responsible for the operation and maintenance of the United States Army. It also had responsibility for naval affairs from 1794 until the establishment of the Department of the Navy in 1798, and for most non-naval air forces until the creation of the Department of the Air Force on September 18, 1947. The secretary of war, a civilian with such responsibilities as finance and purchases and a minor role in directing military affairs, headed the War Department throughout its existence.
Why is US War Department establishes a regular army significant?
The United States Department of War, also called the War Department (and occasionally War Office in the early years), was the United States Cabinet department responsible for the operation and maintenance of the United States Army.

Explore More

September 29 in HistoryYear 1789