Named for Revolutionary War general and South Carolina native Thomas Sumter, Fort Sumter was one of nearly 50 forts built as part of the so-called Third System, a coastal defense program implemented by Congress in 1817.
In simple terms, the U.S. Armed Forces are made up of the five armed service branches: Air Force, Army, Coast Guard, Marine Corps, and Navy.
Career Branches for Army Officers. A branch is a grouping of officers making up an arm or service of the Army. Officers are accessed upon commissioning into a single branch. Throughout their company grade years, it where they are assigned, developed and promoted.