KG is the last member of this block. For reasons I don't quite understand, Kazakhstan held up KG's becoming part of the union. I believe they cites border security reasons as the primary reason, which I heard interpreted the other day as meaning that KZ didn't want migrant laborers from KG.

The capital of KZ is Alma-Aty. The other day I heard the city described as “twice as nice as Bishkek at thrice the price.”