When Mahmoud has ascended the Ottoman-Russian War was continuing. Due to the treaty signed with Britain in 1809, the war continued until French-Russian conflicts had been occurred.

In September 28, 1812 a peace treaty was signed between The Ottoman Empire and Russia in Bucharest. With this treaty Russia left Wallachia and Moldavia, they just took the region of Baserabia. Serbia became an autonomy. Bosnia and Wallachia were freed from taxes for two years. River Tuna was given both Russia and the Ottoman Empire and it was regarded as the border line of two countries.