Meanwhile, the Safavid "dawah" continued in Ottoman areas – with great success. Even more alarming for the Ottomans was the successful conversion of Turcoman tribes in Eastern Anatolia, and the recruitment of these well experienced and feared fighters into the growing Safavid army. In order to stop the Safavid propaganda, Sultan Bayezid II deported large numbers of the Shi'i population of Asia Minor to Morea. However, in 1507, Shah Ismail and the Qizilbash overran large areas of Kurdistan, defeating regional Ottoman forces. Only two years later in Central Asia, the Qizilbash defeated the Uzbeks at Merv, killing their leader Muhammad Shaybani and destroying his dynasty. His head was sent to the Ottoman sultan as a warning.