As the United States struggles to maintain influence across vast parts of the Global South, the expanding BRICS bloc led by Brazil, Russia, India, China and South Africa is receiving more applications than ever before, signaling a growing shift in the international economic order. The top diplomats of the five core BRICS nations began their latest high-level meeting Thursday in Cape Town, South Africa, a prelude to the 15th annual leaders' summit scheduled to take place in Durban, on the country's eastern coast, in August. Long dismissed by Western analysts as a mere multilateral marriage of convenience, this year's BRICS…