Battles for the Caucasus. History of Wars on the Turkish-Caucasian Front. 1828—1921

William Allen - a British scholar, politician, diplomat, and traveler, in collaboration with Russian military historian P. Muratov, created an impressive overview of the largest military conflicts of the 19th-20th centuries in the Caucasus, which has always held immense strategic significance, serving as a natural border between Asia and Europe. The book details the battles and engagements, the challenges of supplying troops in hard-to-reach areas, as well as the layout of political interests of the opposing sides. 

This work contains a wealth of information and can serve as an extremely authoritative source for both military historians and simply enthusiasts of national and world history.