 Complete the following phrase:  On 13 February 1739 the Persians under the military genius Nader Shah, the commander of the Afsharids, had deposed the former Safavid dynasty, then defeated Persias arch rival, the Ottoman Empire several times, and had therefore secured the western front. Now his eyes turned upon the wealthy but weakened Mughal Empire. In the year 1739, Nader Shah 