what is a commissioned or warrant officer
Since then, the U.S. Air Force warrant officer ranks, while still authorized by law, are not used. The W-5 grade was authorized by Congress for use by the Air Force along with the other armed forces, but was never used. Army. The Army Warrant Officer is a technical expert, combat leader, trainer, and advisor. The purpose of the Army WO is to serve in specific positions which require greater longevity than the billet duration of commanders and other staff officers.