The tobacco boycott took place at a time when there was fierce competition between the two colonial powers, Russia and Britain, on Iran. Britain and Russia were each linked to the tobacco ban movement to the extent of their goals and interests. Britain had Reggie concessions, and the Russians tried to prevent Reggie concessions in order to limit British influence and restore their lost influence. This has led some analysts to attribute much of this competition to the boycott movement, to the point that some see the boycott as a premeditated plan by the Russians. The main question of the research is whether the competition between Russia and Britain in Iran was such that the tobacco embargo could be considered as a product of it? Could the tobacco boycott movement, as it happened, have served Russia's goals and interests against Britain? In this article, using the analytical-historical method and relying on the origional documents and sources, first the quality and quantity of this competition is examined and the real extent of Russia's influence evaluated and then the views of the sanctions movement are examined critically. Tobacco is introduced by the Russians as a plan to weaken Britain.