The CCC was called "Roosevelt's Tree Army," & that's exactly what it was, an army with shovels instead of rifles. The workers were led by military officers, which is exactly why state & national park rangers (& boy scouts for that matter) wear uniforms that resemble the military uniforms of the 1930s (green trousers & a button-down khaki shirt).
Obama has expressed interest in resurrecting the CCC (he calls it "green jobs"). My concern is that they will become the labor & logistical force behind the coming fascist regime.