At the same time, Mehmed crossed the Dardanelles to Prusa with the Army of Europe and assembled the Army of Asia; one authority estimates the combined force consisted of 80,000 infantry and 60,000 cavalry.[2] According to Doukas, as word of the Sultan's preparations circulated the inhabitants of places as far apart as Lykostomion (or Chilia Veche) at the mouth of the Danube, Caffa in the Crimea, Trebizond and Sinope, and the islands of the Aegean Sea as far south as Chios, Lesbos, and Rhodes, whether or not they had acknowledged his hegemony, all worried they would be his target.[20] This appears to have been Mehmed's intent, for when later asked by a confidante where this force was destined, the Sultan scowled and said, "Be certain if I knew one hair of my beard knew my secret, I would pull it out and consign it to the flames."[21]