By bne IntelliNews More than thirty world leaders, including Chinese President Xi Jinping and Indian Prime Minister Narendra Modi, have arrived in Kazan, Russia, for the 16th BRICS summit. The meeting, the first since BRICS expanded from five countries to nine, is critical for Russian President Vladimir Putin, who seeks to use the gathering to demonstrate that Moscow is not isolated. Alongside the BRICS leaders, numerous other observers have arrived in Kazan, many of whom aspire to join the group. The Kremlin has promoted the event as a showcase of Russia’s enduring global alliances, despite e…