The Continental Army consisted of troops from all 13 colonies. When the American Revolutionary War began at the
On … See more

In 1783, at the conclusion of the Revolutionary War, a Congressional committee under Alexander Hamilton sought opinions on a permanent armed force. Washington submitted his "Sentiments on a Peace Esta… See more

The War of 1812, the second and last American war against the British, was less successful than the Revolution had been. An invasion of Canada failed due to the over-reliance of using state militias, and U.S. troop… See more

Elihu Root was United States Secretary of War under presidents William McKinley and Theodore Roosevelt, 1899–1904. He reformed the organization of the War Department. He enlarged West Point and establishe… See more

On 11 September 2001, 53 Army civilians (47 employees and six contractors) and 22 soldiers were among the 125 victims killed in the Pentagon in a terrorist attack when American Airlines Flight 77 commandeered by five … See more

• 1775–1783: 17,000 (Continental Army without militias)
• 1784: 700 (First American Regiment)
• 1793: 5,100 (Legion of the United States)… See more