I googled it. .
<Troops of the 82nd Airborne Division at Fort Bragg, N.C., started wearing the maroon beret in 1973, while at Fort Campbell, Ky., the trend exploded, with post personnel wearing red, military police donning light green, and the 101st Airborne Division taking light blue as their color. In Alaska, the 172nd Infantry Brigade began using an olive green beret
History Of The Beret
