Mubarizun

The Mubarizun (Arabic: مبارزون‎, "duelists", or "champions") formed a special unit of the Rashidun army during the Muslim conquests of the 7th century. The Mubarizun were a recognized part of the Muslim army with the purpose of engaging enemy champions in single combat.[1] In pre-Islamic Arab, Byzantine, and Sassanian warfare, battles usually began with duels between the champion warriors of the opposing armies.[2]

The Muslim army would typically begin battle with its soldiers first equipping their armor, assembling their units to their positions and lastly dispatching the Mubarizun.[2] Mubarizun fighters were instructed to refrain from pursuing any defeated enemy champions more than two-thirds of the way to the enemy lines to avoid the risk of being cut off.[3] After the conclusion of the dueling phase, the army would launch its general advance.[2]