The Huns were an ancient group of nomadic warriors who invaded Europe and Asia in the 4th and 5th centuries. They were known for their fierce fighting style and their ability to quickly move from one area to another. They were also known for their use of advanced military tactics, such as the use of cavalry and siege engines. The Huns were a major factor in the fall of the Roman Empire and their influence can still be seen in many parts of Europe today.