By the end of the 18th century, Tsarist Russia now began a more firm policy with the intent to conquer all of the Caucasus at the expense of Persia and Ottoman Turkey. In the spring of 1796, by Yekaterina II's order, General Valerian Zubov's troops started a large campaign against Qajar Persia following the sack of Tblisi and Persia's aim to restore its suzerainty over Georgia and Dagestan. Zubov had sent 13,000 men to capture Baku, and it was overrun subsequently without any resistance. On 13 June 1796, a Russian flotilla entered Baku Bay, and a garrison of Russian troops was placed inside the city. Later, however, Pavel I ordered the cessation of the campaign and the withdrawal of Russian forces following his predecessor, Catherine the Great, her death. In March 1797, the tsarist troops left Baku.