Russian Invasion of Tabriz

During the Persian Constitutional Revolution, rebellion broke out in Tabriz on 23 June 1908. In early February 1909 government forces under Prince ʿAyn-al-dawla surrounded the city. On 20 April, in response to the siege situation, Britain and Russia agreed that a Russian force should be sent to occupy the city in order "to facilitate the entrance into the town of the necessary provisions, to protect the consulates and foreign subjects, and to help those who so desired to leave the town.".