The military beret for almost every country that used them wear them so that they flop over to the right side. So the side on the Left is the only place to attach a badge or insignia. For the US, the left insignia has traditionally been worn on the LEFT side. I guess this was carried over to the beret. One of the first berets worn by the US Army was the berets unofficially adopted by the 77th Special Operations Group, or aka the "Green Berets". They wore them when President Kennedy inspected the base and he commented that the unit looked sharp in their green berets. So it became official. From what I was told when in the military, it is located on the beret over the left eye because most marksmen sight their weapons with their right eyes, thereby decreasing the possibility that the beret would obscure their vision.
In the US Military, prior to general issue (everyone wearing it), the beret symbolized a special unit.
wearing the green beret
wearing the green beret
wearing the green beret
wearing the green beret
wearing the green beret
Depends which unit you are referring to.
Iwas in c company royal regiment of wales and in the late 70s an early 80s iit was black beret and the 3 feathers badge
In US Special Forces
Wearing a beret and eating snails are complete cliches about the French.
Pat Benatar ?
The Australians adopted the black beret from England, as the British wore the black beret during WW2. I'm not sure where the British beret came from. However, the early German armoured units wore an all-black uniform and a large floppy beret. Germany and Prussia has a long tradition of wearing black uniforms.