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.
The Fourth Branch of Government. In school you were taught that the Government has three branches, the Legislative branch, the Executive branch, and the Judicial branch. The Legislative branch is the Congress and they make the laws. The Executive branch is the President, who runs the daily business of government.