Azerbaijan–Russia border
Azerbaijan–Russia border (Azerbaijani: Azərbaycan–Rusiya sərhədi, Russian: Граница Азербайджана и России, romanized: Granitsa Azerbaydzhana i Rossii) is the international border between Russia and Azerbaijan. It is 338 km (210 mi) in length and runs from the tripoint with Georgia in the west to the Caspian Sea the east.