Kyrgyzstan is a country in Central Asia. Landlocked and mountainous, Kyrgyzstan is bordered by Kazakhstan to the north, Uzbekistan to the west, Tajikistan to the south west and China to the east. Its capital and largest city is Bishkek. Kyrgyzstan's recorded history spans over 2,000 years, encompassing a variety of cultures and empires. Although geographically isolated by its highly mountainous terrain – which has helped preserve its ancient culture – Kyrgyzstan has historically been at the crossroads of several great civilizations, namely as part of the Silk Road and other commercial and cultural routes. Though long inhabited by a succession of independent tribes and clans, Kyrgyzstan has periodically come under foreign domination and attained sovereignty as a nation-state only after the breakup of the Soviet Union in 1991.