The Armenian Parliament has ratified a deal to extend the Russian Army presence in the country to over 30 years.
According to the deal, Russia can run its army base in Armenia until 2044 and upgrade the mission of an estimated 5,000 troops.
Deputy Defence Minister Ara Nazarian said the agreement would ensure Armenia's security and boost Russia's military influence in the South Caucasus region, Eastern Europe.
"In addition, according to the amendments, the Russian side will assist Armenia in the provision of armaments and modern military equipment," he added.
The Russian base in the Armenian city of Gyumri is equipped with infantry and artillery units, S-300 missile defence systems and MiG-29 fighter jets.