1 9 2 0 , ▁Russia ' s ▁Red ▁Army ▁inv aded ▁A zer ba ij an ▁and ▁Armen ia , ▁ending ▁the ▁independence ▁of ▁both . ▁In ▁order ▁to ▁avoid ▁an ▁all - out ▁Rus so - T urk ish ▁war ▁the ▁two ▁nations ▁signed ▁the ▁Tre aty ▁of ▁Moscow ▁in ▁March ▁ 1 9 2 1 , ▁which ▁created ▁a ▁modified ▁Soviet - O tt oman ▁border , ▁grant ing ▁Turkey ▁a ▁short ▁strip ▁of ▁land ▁connecting ▁it ▁to ▁N akh ch ivan . ▁N akh ch ivan ▁itself ▁was ▁confirmed ▁as ▁an ▁autonom ous ▁region ▁of ▁A zer ba ij an ▁ 1 9 2 4 . ▁However ▁further ▁fighting ▁took ▁place ▁on ▁the ▁ground ▁and ▁the ▁tal ks ▁st alled ; ▁the ▁treat y ' s ▁prov isions ▁were ▁later ▁confirmed ▁by ▁the ▁Tre aty ▁of ▁K ars ▁of ▁October ▁ 1 9 2 1 , ▁final ising ▁what ▁is ▁now ▁the ▁A zer aba ij an - T ur key ▁border ▁at ▁its ▁current ▁position ▁The ▁border ▁was ▁then ▁dem arc ated ▁on ▁the ▁ground ▁in ▁March ▁ 1 9 2 5 - J uly ▁ 1 9 2 6 ▁by ▁a ▁joint ▁Soviet - T urk ish ▁commission . ▁Turkey ' s ▁independence ▁had ▁been ▁recogn ised ▁by ▁the ▁ 1 9 2 3 ▁Tre aty ▁of ▁La us anne . ▁ ▁A zer ba ij an ▁was ▁initially ▁incorpor ated ▁along ▁with ▁Armen ia ▁and ▁Georgia ▁in ▁the ▁Trans c au cas ian ▁S FS R