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- Members of the Shanghai Cooperation Organization are meeting in Kazakhstan Wednesday.
- It comes amid increasing tensions between two of the group's most powerful members.
- Russia and China are competing over influence in Central Asia.
The leaders of a club of countries touted by Russia and China as a counterweight to Western global power are meeting this week in Kazakhstan.
At the Shanghai Cooperation Organization (SCO) in Kazakhstan's capital Astana, Russia's President Vladimir Putin is scheduled to meet China's President Xi Jinping.