evidence: Syunik is located between the Nakhchivan Autonomous Republic of Azerbaijan from the west, and the de facto independent Nagorno-Karabakh Republic from the east. The Vayots Dzor Province of Armenia forms its northern borders, while Aras River at the south separates Syunik from Iran. Syunik covers an area of 4,506 km² (15% of total area of Armenia), making it the second-largest province in Armenia after Gegharkunik in terms of the total area. Historically, the current territory of the province occupies most of the historic Syunik province of Ancient Armenia.