Sounds like what's about to happen to me =), and yes near the end of the war Britain was landing 30-40 divisions at a time in the Crimea and was quickly gobbling up the Ukraine.
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Tsarograd
The Bloody Campaign
After the Russian victory in Constanta and in the Moldovian campaign nearly 500,000 Russian soldiers surged forward towards Istanbul.
The provinces of Silistra, Varna, Burgas, and Edirine were occupied in short order.
The year 1853 opened with 64,000 Russians under General Vorandonsky assaulting the Ottoman defences in Istanbul. The battle lasted for three weeks and nearly thirty thousand Russians died. Fortunately for the Russians Russia was able to conscript and produce troops faster than the ottomans were able to kill them.
http://pictures.care2.com/view/2/413706943
Russians taking Istanbul
Meanwhile the Ottomans suprised the remaining 40,00 Russians in the caucausas with an assault ottoman assult. The ottoman's occupied several lightly defended provinces and forced Nicholas to dispatch 50,000 of his elite Prezno Guard to the region.
Suddenly on January 24th 1853 123 English Warships were spotted sailing towards the Crimean peninsula. Seeing as there were no troops currently stationed there (after the British defeats last year it was assumed Britain had given up her futile Crimean assaults) the Russian navy, 24 warships strong, sortied out of her ports in Sevastapol. For the 21 sunk Russian ships, England lost nothing. This concluded the greatest naval battle of Russian history.
Meanwhile General Alexveev was pushing hard towards Serbia, occupying
most of Bulgaria and advancing into the Serbian provinces.
An ill-fated Ottoman attack launched against Sofia was defeated and several Ottoman Guerilla campaigns were put down, thus throwing the Ottomans in the Balkans entirely on the defensive.
By 1854 all of Serbia had been occupied and annexed and the vast majority of the Serbian Balkans were occupied by Russia.
The English had landed over 500,000 troops in Crimea and overran the Russian defences in the Ukraine. The British were making remarkable headway.
In 1855 Tsar Nicholas on his deathbed, afraid of what his imbecilic son Alexander might do to his Russian Empire, established a system of Democracy in Russia. Where all the Nobility could vote and elect representatives to the Duma (senate) which if unanimous could veto 3 resolutions a year that his son Alexander proposed. The Duma also had great internal powers. Though it's ability to affect foreign policy was limited. Tsar Nicholas also wishing to be remebered fondly by the peasents implemented 12 hour work days, Minimal Health Care, Pension funds, and a small unemployment stipend. After these acts he most ungraciously died and left his son Alexander to pay for all this.
Due to recent English advances in the Ukraine and a massive Afghan rebellion on Febuary 24th 1856 Tsar Alexander accepted peace terms.
Russia's territorial gains-
1. All lands ceded by Persia to Russia
2. All of Moldovia
3. All of Serbia
4. The province of Foca
5. The province of Novi Pazar
6. The province of Sofia
7. The province of Nis
8. The province of Constanta
http://pictures.care2.com/view/2/601150101
Russian gains. Peace event circled in red.