In 1726, he was appointed commander-in-chief of Caucasus forces. In 1728, as an ultimate consecration of his military career, he was promoted field marshal and member of the Supreme Privy Council.
In 1726, he was designated commander-in-chief for the Caucasus forces. In 1728, to signify the peak of his military achievements, he was appointed field marshal and a member of the Supreme Privy Council.