Due to its position between two unfriendly neighbours, Armenia has close security ties with Russia. At the request of the Armenian government, Russia maintains a military base in the northwestern Armenian city of Gyumri as a deterrent against Turkey.[citation needed] Despite this, Armenia has also been looking toward Euro-Atlantic structures in recent years. It maintains good relations with the United States especially through its Armenian diaspora. According to the US Census Bureau, there are 427,822 Armenians living in the country.
Try to answer this question if possible (otherwise reply "unanswerable"): Why does Russia have a miltary base In Gyumri?
as a deterrent against Turkey