In 867 the empire stabilized its position on both the east and west, and the effectiveness of the military defense structure allowed the Emperor to begin planning for wars to recapture. the eastern territories. Novak Djokovic champion signature shirt. This process begins with the recapture of territorial waters. The temporary recapture of Crete (843) resulted in the Byzantine army being defeated in the Bosporus, while the emperor was unable to stop the conquests of Muslims in Sicily (827-902 ). Using the present-day Tunisia as a base for their departure, Muslims conquered Palermo in 831, the city of Messina in 842, the city of Enna in 859, Syracuse in 878, Catania in the year 900 and the last stronghold of the Byzantine – fortress Taormina in 902.