Commander-in-Chief

A commander-in-chief is the commander of a nation's military forces. Some country's commander-in-chief does not need to have been a soldier or involved in the military. The term was first used by King Charles I of England in 1639.

Commanders-in-Chief is sometimes referred to as Supreme Commander, which is sometimes used as a specific term.^[1]

1. ↑ Dupuy, Trevor N., Curt Johnson, and Grace P. Hayes. "Supreme Commander." Dictionary of Military Terms. New York: The H.W. Wilson Company, 1986.