In February 1853, the British government of Lord Aberdeen, the prime minister, re-appointed Stratford Canning as British ambassador to the Ottoman Empire.:110 Having resigned the ambassadorship in January, he had been replaced by Colonel Rose as chargé d'affaires. Lord Stratford then turned around and sailed back to Constantinople, arriving there on 5 April 1853. There he convinced the Sultan to reject the Russian treaty proposal, as compromising the independence of the Turks. The Leader of the Opposition in the British House of Commons, Benjamin Disraeli, blamed Aberdeen and Stratford's actions for making war inevitable, thus starting the process which would eventually force the Aberdeen government to resign in January 1855, over the war.