Siege of Herat (1221)

Siege of Herat
Part of the Mongol invasion of Khorasan

Map of Herat (1880). The citadel at the center occupies the same site as the fortress destroyed during the Mongol siege of 1221.
DateMay or June 1221 (first siege)
December 1221-June 1222 (second siege)
Location34°20′N 62°12′E / 34.333°N 62.200°E / 34.333; 62.200
Result Mongol victory
Territorial
changes
Herat and surrounding regions incorporated into the Mongol Empire
Belligerents
Mongol Empire Khwarazmian Empire
Commanders and leaders
Tolui
Eljigidei
Malik Shams al-Din Muhammad Juzjani 
Strength
Unknown 12,000 men
Casualties and losses
Unknown 1,600,000 killed
Herat
Location of Herat in present-day Afghanistan
Herat
Herat (West and Central Asia)

The siege of Herat (Persian:محاصره هرات) took place in 1221 CE (618–619 AH), during the Mongol invasion of Khorasan. It consisted of two military engagements fought at the city in 1221 and 1222. The campaign was led by Tolui, son of Genghis Khan, after the citizens of Herat revolted and killed the Mongol garrison stationed in the city. Following its capture, Herat was extensively destroyed, and a large portion of its population was massacred.

The city of Herat was an important center of learning, commerce, and culture in Khorasan. The city was strategically located on key trade routes connecting Central Asia and Persia, and it flourished as a regional hub with bustling markets and skilled artisans producing textiles and other goods. Herat became part of the Khwarazmian Empire prior to the Mongol invasion. In 1221, a Mongol army commanded by Tolui, son of Genghis Khan, laid siege to the city. After the city fell, the Mongols massacred the entire population and destroyed much of its infrastructure. According to chroniclers, the city was devastated to the point that very little of its former structures survived.