Armenia is a natural impregnable stronghold, expert on Iran Vardan Voskanyan says, adding ceding even a small part of it to the enemy is a “shame”.

"I have always wondered how the barbarians managed to conquer our mountains. The main apparently logical reasons were our disorganization and disunity,” he wrote on Facebook on Sunday.

“Armenia is a natural impregnable stronghold, and ceding even an inch of it to barbarians is not only unacceptable, but also shameful,” Voskanyan said.