Mohammad Shah Qajar
Diplomatic relations with France resumed in 1839 following a dispute between Great Britain and Persia over the Iranian city of Herat. Great Britain would remove its military and diplomatic missions from Persia, occupy Kharg island, and attack Bushehr. Mohammad Shah Qajar would in turn resume diplomatic relations with France, and send a diplomatic mission to Louis-Philippe under Mirza Hossein Khan to obtain military help. In response, a group of French officers was sent to Persia with the returning ambassador.