Geography of Tajikistan has headwaters in Afghanistan and Tajikistan. The other neighbors are the former Soviet republics of Uzbekistan (to the west and the north) and Kyrgyzstan (to the north). The lower elevations of Tajikistan are divided into northern and southern regions by a complex of three mountain chains that constitute the westernmost extension of the massive Tian Shan system. Running essentially parallel from east to west, the chains are the Turkestan, Zeravshan (Zarafshan), and Hisor (Gissar) mountains. The last of these lies just north of the capital, Dushanbe, which is situated in west-central Tajikistan. More than half of Tajikistan lies above an
First Secretary of the Communist Party of Tajikistan was downgraded in November 1991 when then First Secretary Qahhor Mahkamov was appointed to the newly created executive position of President of the Tajik Soviet Socialist Republic. Mahkamov was the last First Secretary of the Communist Party of Tajikistan to also serve as head of state of Tajikistan when he resigned his office on August 31, 1991 following his support of the August Coup in Moscow. One of the most celebrated First Secretaries was Bobojon Ghafurov, a renowned scholar who wrote numerous works on the history of Tajikistan. See List of Presidents of Tajikistan for leadership of Tajikistan from 1991–present.