The question as phrased makes no sense. Turkestan as a united entity did not exist, so there cannot be "former republics." Perhaps the question was a mash-up of the question: "What are the 5 former republics of the Soviet Union that form Turkestan?" for which the answer would be: Uzbekistan, Kazakhstan, Kyrgyzstan, Turkmenistan and Tajikistan.
A historical region of west-central Asia extending east from the Caspian Sea into western China and south from the Aral Sea into Afghanistan. It has long been a crossroads for trade and conquest between East and West. click here for more info http://en.wikipedia.org/wiki/East_Turkestan
The present capital of Pakistan is Islamabad and its former capital was "Karachi".
Constantinopole was the former capital of the Byzantine Empire.
The population of Turkestan - city - is 85,600.
Edo is the former name for Tokyo, present capital of Japan
Communist Party of Turkestan ended in 1924.
Communist Party of Turkestan was created in 1918.
Bata was the former capital of Equatorial Guinea.
Dacca was the provincial and legislative capital of the former East Pakistan region.
East Turkestan Islamic Movement was created in 1997.
The Turkestan Desert is a Cold desert located in the Middle-east, Asia.