Colonel (Col or COL) is a military rank of a commissioned officer, with corresponding ranks existing in almost every country in the world. It is also used in some police forces and other paramilitary rank structures. A colonel is typically in charge of a regiment in the army. Today, a colonel is usually a military title rated as the highest, or the second-highest field rank below the general, or "flag" grades. In some small military forces, it can be the highest rank held. History and origins Th… (More on Colonel)