為啥納希契凡共和國不在蘇聯瓦解時獨立？跟亞塞拜然有啥關係？

根據納希切萬 (Nakhchivan) 自治共和國官方網站資料，亞美尼亞跟阿塞拜疆一直對該地主權存在爭議，後來蘇聯把該地劃定為阿塞拜疆蘇維埃加盟共和國的一個自治共和國，被亞美尼亞分隔開。



納希切萬不想介入亞美尼亞跟阿塞拜疆的紛爭之中，當蘇聯發生黑海政變之時，納希切萬甚至比波羅的海三國更早宣佈脫離蘇聯獨立，不過立即被蘇軍鎮壓下去。
http://www.nakhchivan.az/portal-en/tarix.htm

According to the Mudros agreement (1918), after the Turkish withdrawal from the region, the Araz-Turk Republic was established for defending from the Armenian dashnak robbers and killers in November of the same year. The city of Nakhchivan was proclaimed the capital of it. At the beginning of 1918 year the English who had captured Nakhchivan refused to recognize the Araz-Turk Republic. Though the Dashnaks occupied Nakhchivan in July by the help of the English, after the English, the army forces of the Nakhchivan National Committee could banish the Armenian-dashnak forces.
The Nakhchivanis played a great role in keeping Nakhchivan within Azerbaijan.
The Declaration about the establishment of the Soviet Power in Baki on April 28, 1920 and in July 28 in Nakhchivan and establishment of the Azerbaijan SSR, annexation of Zangazur by Armenia, separation of Nakhchivan from Azerbaijan caused the issue of autonomy of Nakhchivan to put on the agenda.
After proclaiming the Soviet Power establishment in Armenia on November 29, 1921, Armenia SSR government did a lot to annex Nakhchivan. Turkey had a great role in getting the status of the autonomy of Nakhchivan within Azerbaijan.
The treaty signed on March 16, 1921 in Moscow and the Gars agreement signed on October 13, 1921 played a great important in solving the fortune of Nakhchivan. As a result the Autonomous Region of Nakhchivan was turned to Nakhchivan Autonomous Republic on February 9, 1924.

http://chowkafat.net/Politics/Azerbaijanc.html

圖片參考：http://chowkafat.net/Politics/Map/azerbaijan.jpg

關於此問題，可參見http://blog.yam.com/dili/article/7798426，在此有詳解，就不在此答覆。