The conflict between the Persian Empire & the Lezgins and a myriad of other Caucasian tribes in the north was intermittently fought through the mid-1730s during Nader's first short expedition in the Caucasus until the last years of his reign and assassination in 1747 with minor skirmishes and raids.
The majority of the Persian casualties were from the extremity of the weather as well as the outbreak of disease, all of which combined with the indomitable will of the Lezgins to wage an insurgency and retreat to their distant strongholds when threatened with a pitched battle made the entire war a quagmire for Nader's forces.
Ultimately the Lezgins who had held on in the northern fortresses marched south upon hearing of Nader's assassination and reclaimed most of their lost territories as the Persian empire crumbled.
[10] After Nader's successful campaign in 1735 against the Ottomans, he lingered on appointing new governors to his newly acquired cities and kingdoms before setting out against the Lezgians in northern Dagestan.
The Tatars who had marched all the way from Crimea, on receiving news of Koprulu Pasha's demise at the Battle of Yeghevārd, turned and hastened back north along the black sea coast.
[11] In 1739, during Nader Shah's invasion of the Mughal Empire, his brother, Ebrahim Khan Afshar, launched a campaign to subdue the Lezgins in Dagestan.
The prominent Georgian nobleman Givi Amilakhvari, who was appointed as a governor (wakil) of Kartli for the shah of Iran and reconfirmed as Prince of Saamilakhoro and Duke (eristavi) of Ksani in the same year of 1741, took part in the campaign.
However, because of the lengthy siege of Mosul and numerous rebellions throughout the interior of Persia the campaign was indecisive and Nader withdrew after coming to terms with the Ottoman negotiators.