Core Viewpoint - The diplomatic crisis between the U.S. and Canada was ignited by a television advertisement from Ontario, which referenced former President Reagan's opposition to tariffs, challenging President Trump's authority and leading to escalating tensions [2][10]. Group 1: Trump's Strategy - Trump's response to the advertisement reflects his "maximum pressure" tactic, viewing international trade as a zero-sum game and using emotional outbursts to gain leverage in negotiations [3]. - The crisis was escalated through a series of threats, including halting trade negotiations and imposing tariffs, culminating in a refusal to meet with Canadian Prime Minister Carney at the APEC summit [4][5]. - Trump's approach signals a shift in U.S. foreign policy, where relationships are based on transactional dynamics rather than shared values, potentially destabilizing international relations [10][11]. Group 2: Canada's Response - Prime Minister Carney's calm and measured response contrasts sharply with Trump's aggressive stance, positioning Canada as a responsible partner willing to engage in dialogue [6][8]. - Carney indicated that Canada would continue to pursue economic development and diversify its international partnerships, reducing reliance on the U.S. [8]. - This strategic restraint by Canada reflects a long-term focus on national interests, aiming to navigate the asymmetric power dynamics with the U.S. [8][11]. Group 3: Implications for International Relations - The conflict highlights potential fractures in the traditionally close U.S.-Canada relationship, raising concerns among other U.S. allies about the future of transatlantic ties [10]. - The situation serves as a critical indicator of shifting international order, where even close allies can face significant rifts over seemingly minor issues [11].

迪穆哈梅多夫的数据让美国的"稀土自主梦"彻底破灭。他直言，美国想要重建镓产业，最少也需要5到10年时间，还得投入数十亿美元。这一番话看似行业 内幕，实则是对华盛顿的"稀土自给"梦想泼了一盆冷水，更藏着俄罗斯在这场中美博弈中的精妙算计。 在10月，尽管中美之间的关税战和稀土争斗愈演愈烈，俄罗斯却始终表现得格外冷静，仿佛坐在钓鱼台，稳如泰山。直到10月21日，俄罗斯稀有金属工业协 会主席迪穆哈梅多夫透露了一组重要数据，才让外界明白，原来普京根本不着急。这背后的深层逻辑逐渐浮出水面。 根据他的分析，美国每年需要30到50吨镓，但国内的产量几乎为零，80%的镓必须从中国进口。而镓的提取并不像简单开矿那么容易，它需要从铝业副产品 中提取，而美国连这方面的基础设施都还不齐全。即便特朗普政府曾信誓旦旦要"解决稀土危机"，现在看来，雄心壮志却成了空谈。即使美澳合作砸下85亿 美元建镓精炼厂，也得等3年才能投入生产，而且美国本土炼镓的成本是中国的2.3到2.8倍，环保审批也需要长达42个月。换句话说，就算美国最终建成了镓 产业，恐怕在5G都要升级到6G时，F35的雷达都已经过时了。 然而，迪穆哈梅多夫的言论背后，藏着三个微妙的 ...