What is the highest rank represented by four silver stars in line?

The highest rank represented by four silver stars in line is General. In the United States military, the rank of General is denoted by four stars. This insignia indicates a four-star rank, which is the pinnacle of the officer ranks in the Army, Air Force, and Marine Corps. Each star symbolizes a level of responsibility and authority, with four stars representing a senior military leader typically responsible for large operational commands or joint forces. This rank is above Lieutenant General, who wears three stars, Major General with two stars, and Brigadier General with one star.