A bitter territorial dispute between Armenia and Azerbaijan is eroding Russia’s ties with a traditional ally, a crisis that could strengthen the American relationship with an erstwhile Kremlin client and possibly increase friction between the United States and its wayward NATO partner,

The crisis in Nagorno-Karabakh has come amid a sharp deterioration in the relationship between historic allies Armenia and Russia, and has been amplified by sometimes incendiary commentary from prominent individuals in Moscow.

Thousands of Armenians are streaming out of Nagorno-Karabakh after the Azerbaijani military reclaimed full control of the separatist region

The Nagorno-Karabakh leadership said the region's 120,000 Armenians did not want to live as part of Azerbaijan for fear of persecution and ethnic cleansing. Those with fuel started to drive down the Lachin corridor.

The first refugees from Nagorno-Karabakh have arrived in Armenia after Azerbaijan conducted a lightning military offensive there, reclaiming full control of it as the result.