Phokas (Φωκάς) was a Byzantine and Eastern Roman emperor of the 7th century. He is known for revolting against Maurice while in military service and then brutally murdering him. He was known for being cruel, ruthless, and paranoid all while Slavs, Avars, and the Sassanids encroached. Phokas failed to properly respond to these threats. It was only when Heraclius executed Phokas and took the throne that these threats were dealt with.