| Conflict: | Battle of Herat |
| Partof: | Nader's Campaigns |
| Date: | July, 1729 |
| Place: | Herat, Afghanistan |
| Result: | Persian victory |
| Combatant1: | Safavid Loyalists |
| Combatant2: | Abdali Afghans |
| Commander1: | Nader |
| Commander2: | Allahyar Khan |
After the succession of setbacks the Abdalis of Herat had faced in the campaign Allahyar Khan decided to sully out for a last engagement to decide the issue. Unfortunately yet again the charge of the Afghan horsemen was broken up by the disciplined fire of the Persian line musketeers and flank attacks by the supporting Persian cavalry. Allahyar Khan was left no choice but to withdraw his battered army behind the walls of Herat in the hopes of withstanding the coming siege. An intense bombardment of the city ensued with heavy cannon and mortars battering the city's defences. After consulting with his advisers Allahyar Khan was convinced of the futility of further resistance. Peace terms were offered and the Abdalis agreed to sear fealty to Tahmasp II as the rightful ruler of Persia and Herat. Thus the Abdalis were brought under Persian suzerainty.