The Republic of Mountainous Armenia, also known as simply Mountainous Armenia, was an anti-Bolshevik Armenian state roughly corresponding with the territory that is now the present-day Armenian provinces of Vayots Dzor and Syunik, and some parts of the present-day Republic of Azerbaijan in the west. It was established by military commander and Armenian political thinker Garegin Nzhdeh and his allies with the support of local guerrilla forces, following the suppression of the February Uprising in April 1921. Wikipedia