Polls opened in Kyrgyzstan on Sunday in the first presidential election since last year\'s bloody revolution and deadly ethnic violence. The ex-Soviet Central Asian nation of 5.3 million people on the border with China faces a key test, for in its 20 years of independence the deeply divided nation has not had a peaceful transition of presidential power. Voters are choosing one of the 16 presidential candidates at 2,289 polling stations throughout the mountainous country. Kyrgyzstan is an important partner for US operations against the Taliban. It is the only country in the world that hosts both US and Russian military bases.