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The Army is the branch of the U.S. armed forces responsible for land operations. It trains, equips, and deploys soldiers for combat and support missions, and it includes active duty, National Guard, and Reserve components. It is part of the Department of Defense and is led by a civilian secretary who answers to the president.

People usually bring questions about what the Army does, how it is organized, and how it differs from the other branches. Others ask about ranks and insignia, how soldiers are promoted, and how to choose among the armed services.

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October 5last updated

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All Articles on Army

Understanding Military Ranks and Insignia: A Guide to the U.S. Army Structure

Army ranks, pay grades and insignia reveal different kinds of responsibility, from junior enlisted soldiers to warrant officers and senior commanders.

28 Min Read

The U.S. Army: Structure, Mission, and Role in National Defense

The United States Army stands as the nation's principal land power, a cornerstone of the U.S. Armed Forces with a legacy stretching back over…

45 Min Read

Choosing a Military Branch: Army vs. Navy vs. Air Force vs. Marines vs. Space Force

How the six armed services differ for someone deciding to enlist: test scores, medical waivers, training length, deployment, pay and the contract terms.

86 Min Read