Capabilities Analysis

US Army: robust, adaptive force addresses global challenges


The US Army's complex but coherent system poises it to meet diverse needs both at home and around the world.

Share this article

A US Army reservist prepares to fire an M2A1 machine gun during a live-fire training exercise at Fort Hunter Liggett, California, June 5. [US Army]
A US Army reservist prepares to fire an M2A1 machine gun during a live-fire training exercise at Fort Hunter Liggett, California, June 5. [US Army]

At the forefront of national defense, the US Army has three distinct elements: an active component and two reserve forces.

These three elements -- the Regular Army, the Army National Guard and Army Reserve -- include approximately 952,000 soldiers.

The Regular Army and the Army Reserve, per Title 10 of the US Code, serve under federal command.

The Regular Army is always ready for immediate deployment and sustained operations. The Army Reserve, primarily part-time soldiers, provides crucial support and augmentation to active-duty forces, particularly in specialties like medical, engineering and logistics.

A different structure governs the National Guard, which has both state and federal duties. Per Title 32 of the US Code, the Guard serves under states' governors.

In recent years, the Guard has addressed state emergencies like natural disasters, civil unrest or border security challenges. Uniquely in the US military, it enforces laws domestically if needed.

The US president may federalize National Guard units, overriding a governor during national emergencies or significant military engagements. In recent years, the Guard has served in Afghanistan, Iraq, Poland and the Horn of Africa.

Army corps

At the heart of the Army's strategic and operational capabilities are its corps, which are the primary warfighting elements under Army Forces Command.

They include four major, active corps, two to five divisions each with 20,000–45,000 soldiers.

Commanded by a lieutenant general, each corps is flexible and capable of a wide range of operations, from full-scale combat to peacekeeping and humanitarian assistance.

I Corps, headquartered at Joint Base Lewis-McChord in Washington, is primarily oriented towards the Asia-Pacific region. This corps helps ensure US military presence and readiness in an area marked by significant geopolitical tensions and the presence of China and North Korea.

III Corps, based at Fort Cavazos, Texas, was activated in World War I in France and has a recent operational history entwined with the Middle East. It has served in Iraq and Afghanistan, and in 2015 assumed command of Combined Joint Task Force-Operation Inherent Resolve from US Army Central.

In this role, III Corps leads the coalition of more than 60 nations tasked with defeating the "Islamic State of Iraq and Syria" (ISIS).

V Corps, stationed at Fort Knox, Kentucky, is focused on Europe. It works to promote regional stability and security despite resurgent Russian military activity in Eastern Europe.

XVIII Airborne Corps, based at Fort Liberty, North Carolina, is known as "America's contingency corps." It responds swiftly anywhere and can deploy by air, land or sea. It includes airborne and special operations forces.

The US Army's complex but coherent system provides a robust, adaptive force that can address diverse global challenges.

Do you like this article?

Captcha *


A respectable article.


(Profanity) the US army!


You say that the army is for the service and protection of homeland. What did the US army have to do with Afghanistan when it invaded it? What did it have in Iraq when it invaded it, or in Syria, Yemen or Libya or other countries? It was just after their natural wealth. Children have been killed in every country which the US army entered. Two million Iraqi children have been killed. This scenario is being repeated in Gaza. You didn’t ask yourselves why children are being killed. Sanctions were imposed on Iraq, and children’s milk was not allowed in. Is what’s happening in Gaza also a protection of the nation at the expense of Arab, Muslim countries? There is a Prophet’s hadith that goes like, “Hold yourselves accountable before you are held accountable, and weigh before you are weighed," the Messenger of God, may God bless him and grant him peace, spoke the truth


You’re all round liars! I don’t think that the US army has doctors, engineers or logisticians. I think that the US army includes only Chicago thieves. I think you know them because you’re one of them. As to the saying that the mission of the US army is to defeat the "Islamic State of Iraq and Syria" (ISIS), this is true. Do you know why? This is because Islam, with its [unintelligible], throws fear in the hearts of criminals like you. However, ISIS was made by the US one hundred percent; it was made of those distorted minds that America uses in invading the Arab and Muslim countries which it seeks to steal their wealth or overthrow their criminal regimes that threaten US national security. That national security is based on theft and fraud. This is normal because you’re thieves and don’t know anything about honour or dignity. These are terms that you know nothing about. This is because you’ve fallen deep into defilement, immorality, theft, usury and attempts to loot countries’ wealth. As to Islam, it is a true religion based on honour, pride, dignity, values, principles and worship of Allah, the One and Only, the Eternal, the One who was not born and was not born, and there is no one equal to Him. In recent days, some priests might have known or realised a part of the truth. However, when they know all the truth, by that time, you will have no existence on earth.


Take me with you.


Allah willing, America, which is the sponsor of global terrorism, will die!


The Egyptian army only. Long live Egypt!