In addition to the Crimean War, another contextual feature surrounding "En Orient:" "impressions et réminiscences" was the Caucasian wars (1817–1864). As a military man, Adlerberg fought in the wars of Caucasus. The Caucasus was situated between the Black and Caspian Seas. The totality of the South Caucasus and part of the North were annexed by Russia as a result of the Russo-Persian wars of 1804-1813 and 1826-1828 that opposed Iran to Russia.