Armenia–Turkey border
The Armenia–Turkey border (Armenian: Հայաստան–Թուրքիա սահման, romanized: Hayastan–T’urk’ia sahman; Turkish: Ermenistan–Türkiye sınırı) is 311 km (193 mi) in length and runs from the tripoint with Georgia in the north to the tripoint with Azerbaijan in the south. The land border has officially been closed since 3 April 1993 when Turkey joined Azerbaijan in imposing a transportation and economic blockade against Armenia and Nagorno-Karabakh, in response to the Karabakh movement which called for independence from Azerbaijan and reunification with Armenia.