Armenians have lived in Arzakh continuously (!) for over 2000 years. That means, they never left Arzakh. Quote(wikipedia): "Today, the right of peoples to self-determination is generally recognised as a customary norm of international law. Its legal character is also recognised under international treaty law by Article 1(2) of the UN Charter, the International Covenant on Civil and Political Rights (ICCPR) and the International Covenant on Economic, Social and Cultural Rights (ICESCR), both of 19 December 1966."