MOSCOW -- Turkey and Russia have escalated their competing quests for influence among the resource-rich former Soviet states of Central Asia, a complex geopolitical region that has also drawn the attention of China and the U.S.
International relations
Turkey's Central Asia tug-of-war with Russia intensifies
China and US also active in pursuing resources and regional clout
An Azerbaijani flag on an oil platform in the Caspian Sea: Azerbaijan and Turkmenistan reached a deal in January to jointly develop a Caspian Sea oil field.
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