 The result was that the Safavids regained control of the Khorasan region (north-eastern and east of present Iran, southern parts of present-day Turkmenistan, and western and northern Afghanistan).After the Shaybani Uzbeks began to rise to power in Transoxiana around 1495, Muhammad Shaybani Khan was waiting for a chance to annex the territory of the Timurids in Herat, which eventually occurred when the forces of the Uzbek Khan occupied the city and its environs in 1507.Shah Ismail started his campaign in Azerbaijan in 1502, and had re-unified all of Iran by 1509.