特朗普宣布终止谈判，中国已接到通知，美国亲密盟友倒戈

Core Points - The article discusses the sudden termination of trade negotiations between the U.S. and Canada by President Trump, triggered by a controversial advertisement from the Canadian government that criticized U.S. tariff policies [1][3] - The situation highlights the growing rift in U.S.-Canada relations and signals a potential restructuring of global trade dynamics [1][7] Group 1: U.S.-Canada Trade Relations - President Trump announced the immediate cessation of all trade negotiations with Canada due to what he termed "fraudulent" behavior related to an advertisement that misrepresented former President Reagan's views on tariffs [1][3] - The advertisement, released by the Ontario government, used a clip from Reagan's speech criticizing tariffs, which led to a backlash from the Reagan Foundation, claiming the ad distorted Reagan's original message [3][5] - The U.S. and Canada have a close trade relationship, with bilateral trade exceeding $900 billion in 2024, making Canada the second-largest trading partner of the U.S. [5] Group 2: Canadian Response and Strategic Shift - Canadian Prime Minister Carney indicated a strategic pivot towards China, seeking to double exports to non-U.S. markets over the next decade, which reflects a significant shift in trade policy [7][9] - The Canadian government is actively pursuing a strategic relationship with China, with plans for discussions during the upcoming APEC summit [7][9] - There is a growing trend among other countries, including Germany and the UK, to strengthen ties with China, indicating a broader shift in global trade alliances [7][9] Group 3: Economic Implications - The proposed digital services tax in Canada, aimed at large tech companies, has been a point of contention, with potential annual revenue estimated at $2 billion, but viewed by the U.S. as a targeted attack [5][10] - Following Trump's announcement, the Canadian dollar depreciated, and there were significant fluctuations in oil prices, raising concerns about the stability of the supply chain between the U.S. and Canada [5][10] - The article notes a division in Canadian public opinion regarding the government's pivot towards China, with some supporting the move while others criticize it as hasty [9][12]