A renewed war over Nagorno-Karabakh will result in a nightmare scenario for Azerbaijan, grinding its oil-based economy to a halt and bringing an end to international investment in the country, according to the head of a think tank centered around former Soviet issues.

The head of Russia's Federal Agency on Atomic Energy (Rosatom), Sergey Kirienko, ended at the weekend a two-day visit to Armenia during which he discussed with Armenian leaders growing bilateral cooperation on nuclear energy...