United States Army

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US Army soldiers at sunset

Mission & Core Functions
• Warfighting: Conducting decisive ground combat operations to defeat enemy forces.
• Readiness: Delivering trained and equipped combat formations prepared for rapid deployment.
• Transformation: Adapting doctrine, technology, and training to meet evolving threats.
• Professionalism: Strengthening the Army profession through leadership, discipline, and values.

Personnel & Structure
• Active Duty: ~452,000 Soldiers.
• Army National Guard: ~325,000 members.
• Army Reserve: ~174,000 members.
• Total Force: Over 1 million personnel, including civilians and contractors.
• Headquarters: The Pentagon, Arlington, Virginia.

Heritage & Values
• Core Values: Loyalty, Duty, Respect, Selfless Service, Honor, Integrity, Personal Courage.
• Motto: “This We’ll Defend.”
• Colors: Black and gold, symbolizing strength and excellence.
• March: “The Army Goes Rolling Along,” reflecting tradition and pride.

Modern Role
• The Army provides boots on the ground for sustained combat, peacekeeping, and humanitarian missions.
• It operates globally with divisions, brigades, and specialized units capable of rapid deployment.
• The Army plays a critical role in joint operations, working alongside the Navy, Air Force, Marines, and Space Force.
• In addition to combat, the Army supports disaster relief, civil assistance, and infrastructure rebuilding worldwide.

In short: The Army is America’s foundational land force, combining centuries of tradition with modern capabilities to defend the nation and support global stability.

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Learn about Army missions, training, and how to serve your country.