Crimean War
The Russians evacuated Wallachia and Moldavia in late July 1854. With the evacuation of the Danubian Principalities, the immediate cause of war was withdrawn and the war might have ended at this time.:192 However, war fever among the public in both the UK and France had been whipped up by the press in both countries to the degree that politicians found it untenable to propose ending the war at this point. Indeed, the coalition government of George Hamilton-Gordon, 4th Earl of Aberdeen fell on 30 January 1855 on a no-confidence vote as Parliament voted to appoint a committee to investigate mismanagement of the war.:311

Q: In what year did the Russians leave Wallachia and Moldavia?
1854