Ancient Celts - Celtic warriors often painted their bodies with a blue die from a plant called "Woad". The woad would be painted in different shapes, such as animal. They were very fierce fighters, and the Romans feared them. Sometimes Celtic warriors would enter battle wearing nothing but woad and a necklace. This necklace would supposedly hold healing powers.
Celtic skirmishers from Britain - 1st century B.C to 1st century AD. Due to the highly stratified nature of Celtic society not all warriors could afford the broad sword and large shield. The lower classes mostly acted as skirmishers and light troops.
I went to a guys house to buy a sword once (He was a retired Air Force officer) he had the largest collection of swords and armor and crossbows, ancient muskets, etc. Larger than most museums! I bought two swords from him and would have loved to buy many, many more. He probably had close to 200-300 swords in his basement.