The United States Army is the branch of the United States armed forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services. The modern Army has its roots in the Continental Army which was formed on 14 June 1775, before the establishment of the United States, to meet the demands of the American Revolutionary War. The Congress of the Confederation officially created the United States Army on 3 June 1784 after the end of the revolutionary war to replace the disbanded Continental Army. The Army considers itself to be descended from the Continental Army and thus dates its inception from the origins of that force.
The primary mission of the Army is to "provide necessary forces and capabilities ... in support of the National Security and Defense Strategies." The Army is a military service within the Department of the Army, one of the three military departments of the Department of Defense. The Army is headed by the Secretary of the Army, and the highest ranking military officer in the department is the Chief of Staff of the Army. In fiscal year 2009, the Regular Army reported a strength of 549,015 soldiers; the Army National Guard (ARNG) reported 358,391 and the United States Army Reserve (USAR) reported 205,297 putting the combined component strength total at 1,112,703 soldiers.
1st General Order
"I will guard everything within the limits of my post and quit my post only when properly relieved."
2nd General Order
"I will obey my special orders and perform all of my duties in a military manner."
3rd General Order
"I will report violations of my special orders, emergencies, and anything not covered in my instructions, to the commander of the relief."