Foreign hostility, with domestic aid, destroyed the foundations of the Constitutional government twice in about four years. Prior to the 1907 convention Great Britain had acted as a midwife of the new order, but subsequently, in spite of Grey's good intentions, British performance generally favored Russia at the expense of Iran.
Grey’s policy toward Iran from beginning to end was nonintervention and friendship with Russia, and, if the two objects clashed, the former had to yield. “If the Persian question was mismanaged,” he argued, “the Persian question might disappear, and bigger issues would arise.” It was this conviction which governed his actions, resulting in the subordination of purely Iranian interests to the demands of the European situation.”
Russia was quite aware of British thinking and took advantage of it. S. D. Sazonov” aptly described the situation in a significant letter to the Russian Minister at Tehran: “The English, engaged in the pursuit of political aims of vital importance in Europe, may, in case of necessity, be prepared to sacrifice certain interests in Asia in order to keep a Convention alive which is of such importance to them. This is a circumstance which we can, of course, exploit for ourselves, as for instance, in Persian affairs.”