Лев Диакон
Skleros then quickly assembled a force of ten to twelve thousand men and set out to meet the Rus'. The two armies met near Arcadiopolis (modern Lüleburgaz in Turkish Thrace), some 80 km west of Constantinople. The two primary accounts on the Byzantine side differ on the preliminaries of the battle: Leo the Deacon reports that Skleros sent a scouting detachment ahead under the "patrikios" John Alakaseus, and then gave battle after only a day, but the later chronicle of Skylitzes reports that for a few days, Skleros with his men remained within the walls of Arcadiopolis as the Rus' encamped nearby, and refused to come out and meet them in battle despite their repeated challenges for him to do so. According to Skylitzes, the Rus' quickly became convinced that the imperial army was too afraid to face them; consequently they roamed about the countryside plundering, neglected their camp defences, and spent their nights in heedless revelry.