Army - Sergeant First Class (Retired) - Fort Buchanan, Puerto Rico - Mug Iraq war While the CPO rank has

While the CPO rank has existed for over 130 years

and fought with distinction during World War II

and ribbed cuffs

is one of the Army's most historic installations

Army - Sergeant First Class (Retired) - Fort Buchanan, Puerto Rico - Mug Iraq war While the CPO rank hasSergeant First Class (SFC) is a military rank in some militaries and other uniformed organizations around the world, typically that of a senior non commissioned officer. Sergeant First Class (SFC) is the seventh enlisted rank (E 7) in the U. S. Army, ranking above staff sergeant (E 6) and below master sergeant and first sergeant (E 8), and is the first non commissioned officer rank designated as a senior non commissioned officer (SNCO). A sergeant