Write an essay on politics of Central asia region in past and present, what has changed in 20-30years since the first publications about independent Central Asia. Use the this thesis statement and ellobrate based on that and give examples for each part. Thesis statement:  The politics of Central Asia have witnessed considerable changes during the last two to three decades. The early years were defined by presence of specific challenges related to state-building and democratization. Since then, various degrees of political consolidation, economic development, and changes in geopolitical dynamics have been experienced by the region.