Anglo-Russian Convention of 1907; the collaboration of Russia and Britain and the bloody events of Tabriz in 1330 AH / 1911.

In the early 20th century, the Russians and Britain, on their common interests and interests, set aside their long-standing rivalry over Iran's issues and brought convergence and cooperation, and, subsequently, the Treaty of 1907 was signed between the two countries. The agreement sought to bring the two countries' policies towards Iran until 1917. The purpose of this article is to examine the effect of this convergence and cooperation between the two countries on the historical destiny of Iran, with emphasis on the disasters brought about by Russians in 1930 in Tabriz. The results of this study, which relied on documents, letters, telegrams, as well as new research on this issue, show that the damage that Iran suffered during this period, through the cooperation of the two colonial governments of Russia and the United Kingdom was much more than the loss and damage at the time of competition between these two governments in Iran. After the 1907 agreement, Russia and Britain sacrificed Iran's independence and territorial integrity for their own interests. When Russia apparently violated Iran's sovereignty and territorial integrity, the British, according to their own interests, feared the cancellation of the 1907 treaty. On the part of the Russians, they approved the aggressive actions of the Russians and thus encouraged them to continue their destructive actions. The culmination of these aggressions was the Russian occupation of Tabriz in 1930/1911, which resulted in the deaths or emigration of a large number of constitutionalists and liberators from the city and creating a climate of fear and terror.