about [Muslim] Chechens in [non-Muslim] Russia, or Uyghurs in China, simply because the Iranian state has important strategic ties with both China and Russia that need to be preserved in the state interest. Iran has astonishingly even supported Christian Armenia in the First Nagorno-Karabakh War against Shi'ite Azerbaijan and has been careful not to lend too much support to Islamic Tajiks in Tajikistan, where the language is basically a dialect of Persian. In this regard the Islamic Republic resembles another revolutionary state, the old Soviet Union. The USSR was ideologically committed not to Islam but to world proletarian revolution, led by Communist parties under its leadership, but "frequently abandoned support to foreign communist parties when it served Soviet national interests to cooperate with the governments that were oppressing them."