Political instability was thus compounded by foreign intervention. To preserve their commercial and political interests the powers demanded, through the medium of their legations, that the Iranian government conform its policy with the principles of the Anglo-Russian Convention of 1907. They made every effort to see that no Prime Minister took office unless he was either their man or would not stand in their way.
Sa'd al-Dawlah was the Anglo-Russian candidate for the post of Prime Minister. In November 1912 the powers outwitted Prime Minister Çamsâm al-Saltanah into requesting Sa'd’s return from Europe. In London Sazonov and Grey even discussed the conditions of his taking office. These included his acceptance of the financial and other terms that the powers proposed.”
Because of personal animosity between him and the Regent, as well as for other reasons, the powers failed to install him in office in spite of his return to Tehran on November 9, 1912. It was not easy for the powers to find another man whom they both trusted. Furthermore, their experience in the Sa'd al-Dawlah case made them realize that their choice should not offend certain factions and individuals active and influential in Iranian politics.
The British and Russian Ministers at Tehran were asked to find out who would be reasonably acceptable as Prime Minister. The British Minister informed Grey that ‘Ala* al-Saltanah might be the man, and the latter took office. On January 11, 1913, the Minister further informed his government that Ala alSaltanah’s Cabinet was the most stable one that could be formed at the time. The Russians were not so enthusiastic as the British. Sazonov wrote the British Ambassador on January 13, 1913, that the Russian attitude toward the new Cabinet would depend entirely on its attitude toward Russia." To be acceptable to Russia, the ‘Ala alSaltanah Cabinet soon felt compelled to yield to Russian pressure for a concession for a railway from Julfa to Tabriz.