Group 1 - The 17th BRICS summit will be held in Rio de Janeiro, Brazil, from July 6 to 7, with security measures involving approximately 20,000 military personnel to ensure safety for representatives from 28 countries and 7 international organizations [1] - The summit will feature leaders from Brazil, China, Russia, India, South Africa, and new BRICS members such as Indonesia, Iran, and Ethiopia, along with invited delegations from Mexico, Turkey, and Saudi Arabia [1][2] - The main theme of the summit is "Strengthening Global South Cooperation for More Inclusive and Sustainable Governance," coinciding with significant geopolitical tensions due to U.S. policies [2][3] Group 2 - A new guarantee fund supported by the New Development Bank may be announced during the summit to lower financing costs and promote investment, aiming to leverage existing resources without requiring additional contributions from member countries [2] - The fund is expected to mobilize $5 to $10 in private capital for every $1 in guarantees provided by the New Development Bank for pre-approved projects, with technical preparations anticipated to be completed by the end of this year [2] - Brazil's foreign minister outlined three priority topics for the summit: deepening health cooperation, unifying positions on climate change, and establishing mechanisms to facilitate trade and investment among member countries [3]