 Complete the following phrase:  Agha Mohammad Khan demanded that Heraclius II renounce the Treaty of Georgievsk, which had been signed several years earlier, denouncing dependence on Persia and agreeing to Russian protection and assistance in its affairs. He demanded that Heraclius II again accept Persian suzerainty in return for peace and security. The Ottomans, Irans neighbouring rival, recognized Iranian rights to Kartli and Kakheti for the first time in four centuries. Heraclius appealed to Empress Catherine II of Russia for at least 3,000 Russian troops; although he received no response leaving Georgia to fend off Persia alone, he rejected Agha Mohammad Khans ultimatum. Agha Mohammad Khan invaded the Caucasus, crossing the Aras and recapturing Shirvan, the Erivan, Nakhchivan, Derbent, Talysh, Shaki and Karabakh Khanates, and Igdir. The 