These patches would be worn on your left sleeve instead of an ISAF patch. It has glint tape so you can quickly Identify leaders at night. There is a way to decode these patches, but I do not think it would be prudent to publish this information on a public board.
These came from a friend of mine who wore these when deployed with the 173rd Airborne ro Afghanistan.
These came from a friend of mine who wore these when deployed with the 173rd Airborne ro Afghanistan.