The siege of Balkh can refer to one of these historical events:Siege of Bactra, by Seleucid Empire between 208 and 206 BC Siege of Balkh (1220), by Mongol Empire during Mongol invasion of the Khwarazmian Empire Siege of Balkh (1370), by Timur Siege of Balkh (1447), during the Timurid Civil Wars Siege of Balkh (1648), by Kazakh-Bukhara army