Core Viewpoint - The article discusses how China's recent diplomatic efforts, particularly Wang Yi's visit to Southeast Asia, have countered the United States' attempts to isolate China through tariffs and alliances, resulting in a significant shift in regional dynamics [1][4][25]. Group 1: Diplomatic Breakthroughs - Wang Yi's meetings with foreign ministers from nine countries in Southeast Asia led to three major breakthroughs, including the completion of the China-ASEAN Free Trade Area 3.0 negotiations, allowing over 90% of goods to achieve zero tariffs [4][11]. - The bilateral trade volume between China and ASEAN has reached $912.7 billion, with China being ASEAN's largest trading partner for four consecutive years, indicating deep economic integration that is resistant to U.S. threats [11][26]. Group 2: Regional Reactions - Countries traditionally aligned with the U.S., such as Brazil and Canada, have begun to reassess their positions in light of U.S. tariff policies, with Brazil's President Lula openly threatening retaliation against U.S. tariffs [15][17]. - Japan and South Korea, historically strong U.S. allies, are reconsidering their strategies as they face economic challenges due to U.S. tariffs, with China proposing to restart free trade negotiations [19][25]. Group 3: Strategic Implications - China's diplomatic strategy reflects a shift from isolation to collaboration, utilizing market opportunities and cooperative frameworks to counter U.S. unilateralism [23][30]. - The article emphasizes that the current geopolitical landscape is moving towards multilateral cooperation rather than unilateral dominance, with China positioning itself as a proponent of win-win solutions [30][32].