Meaning of Army Air Forces

Ar'my Air' Forc"es

Pronunciation: [key]
— U.S. Army. U.S. Army.
  1. a unit comprising almost all aviation, with its personnel, equipment, etc.: it became part of the Air Force on July 26, 1947.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.