Why is South Africa upset about Iran joining BRICS naval drills?

South Africa has launched an inquiry into Iran’s participation in joint naval drills with BRICS nations last week, apparently against the orders of President Cyril Ramaphosa.

BRICS is a group of 10 countries: Brazil, China, Egypt, Ethiopia, India, Indonesia, Iran, Russia, South Africa and the United Arab Emirates. The acronym BRICS represents the initial letters of the founding members, Brazil, ...