This treatment continued under his prime minister Amir Kabir, who even ordered the execution of the Báb – regarded as a manifestation of God to Bábí’s and Baháʼís, and to historians as the founder of the Bábí religion.Unable to regain the territory in the Caucasus irrevocably lost to Russia in the early 19th century, Naser al-Din sought compensation by seizing Herat, in 1856. Great Britain regarded the move as a threat to British India and declared war on Persia, forcing the return of Herat as well as Persia’s recognition of the kingdom of Afghanistan.