特朗普叫停谈判，不到24小时，加拿大封杀中企，中方已有言在先

Group 1 - The trade conflict between Canada and the U.S. escalated after Canada announced a 25% tariff on U.S. imports that do not comply with the USMCA agreement, particularly targeting American automobiles [3] - Canada plans to impose a 3% digital services tax on major tech companies like Amazon, META, Google, and Apple, retroactively applying it to revenues exceeding $14.3 million since 2022 [3] - The economic disparity between Canada and China is highlighted, with China's GDP projected to be over seven times that of Canada in 2024, indicating Canada's limited capacity to confront the U.S. [5] Group 2 - Following Canada's firm stance, the U.S. responded by halting all trade negotiations until Canada retracts the digital services tax, with potential annual retaliatory tariffs of $2 billion on Canadian goods if investigations reveal subsidization or dumping [7] - Canada took measures against Chinese company Hikvision, citing national security concerns, which appears to be an attempt to gain favor with the U.S. despite lacking specific evidence of threat [7] - China has expressed strong opposition to any actions that sacrifice its interests for U.S. concessions, indicating potential repercussions for Canada's recent decisions [10]