In the second half of the 15th century, they conquered the Crimea, Armenia, Mesopotamia, Egypt, part of Georgia, Syria and Arabia. Ottoman armies strove to conquer larger territories.
They captured small regions of Asia, then invaded the Balkan Peninsula, and soon Bulgaria, Serbia and the weakened Byzantine fell to their rule. United under his rule, the tribes began their conquests. In the 13th century, from the remnants of the divided state of Seljuk, a Turkish people emerged with an Ottoman emperor at the head.