The United States Army is a branch (or section) of the United States Armed Forces. An army mainly deals with land based missions, while other parts of the military deal with air and sea missions. The current Commander-in-chief of the United States Army is President Biden.
The United States Secretary of the Army, a civilian, leads the army with the help of the Army Chief of Staff, a general. Officially, a person (or member) in the army is called a soldier. The soldier must take orders from a person in charge known as a CO or commander. When a person joins the Army, they must serve for a certain amount of time or a "tour of duty". A new soldier or recruit must go through training called Basic Training to become a soldier. Each soldier is trained in a variety of weapons and equipment to carry out commands.