Turkish–Azeri blockade of Armenia
The joint Turkish–Azeri blockade of Armenia is an ongoing transportation and economic embargo against Armenia which has significantly impacted its economy and the regional trade dynamics of the Caucasus. The blockade was initiated in 1989 by Azerbaijan, originally in response to the Karabakh movement which called for independence from Azerbaijan and reunification with Armenia.
Source: Wikipedia — Turkish–Azeri blockade of Armenia (CC BY-SA 4.0)