Leaders attending the Shanghai Cooperation Organization cast the group as capable of exerting increasing influence on the world stage. But beneath a veneer of solidarity, cracks are visible in the foundation. The two-day SCO summit concluded July 4 with the signing of a bevy of documents, including a joint declaration that outlined an intention for the organization to exert a greater degree of global influence. “Tectonic shifts are occurring in global politics, the economy and other areas of international relations,” the document stated. “A fairer and multipolar world order is emerging.” Earli…