美国和中亚5国举行峰会，目的是关键矿产合作，还签了备忘录

Group 1 - The C5+1 summit was held by the U.S. with five Central Asian countries, indicating a hierarchical arrangement rather than an equal partnership [1] - The summit focused on critical minerals, which are abundant in Central Asia and hold strategic value, aligning with the U.S. efforts to secure these resources globally [3] - The U.S. requested the Central Asian countries to impose sanctions on Russia and invest in U.S. industries, while also seeking priority access to Central Asian mineral resources [4] Group 2 - Geographically, the five Central Asian countries are strategically located near China, Russia, and Iran, as well as Afghanistan, with Turkmenistan being a permanent neutral country [5] - The U.S. has previously missed the APEC summit and is now focusing on Central Asia, indicating a shift in its diplomatic strategy [7] - A memorandum of understanding was signed with Kazakhstan regarding critical minerals, specifically tungsten, highlighting the U.S.'s interest in resource collaboration [8] Group 3 - The memorandum signed is only a preliminary agreement and does not guarantee implementation, suggesting that the U.S. must provide tangible benefits to ensure cooperation from these countries [9]