美大使，放狠话：不买就频繁进领空！

Core Viewpoint - The U.S. Ambassador to Canada, Peter Hoekstra, has threatened that if Canada does not proceed with the procurement of 88 F-35 fighter jets, U.S. military aircraft will increasingly enter Canadian airspace to "address threats" [1][3]. Group 1: U.S.-Canada Defense Relations - Hoekstra stated that changes would need to be made by the North American Aerospace Defense Command (NORAD) if Canada does not enhance its defense capabilities [3]. - He indicated that the U.S. may need to procure more advanced fighter jets for its own air force and increase their presence in Canadian airspace [3]. - The ambassador emphasized that if Canada opts for the Swedish-made Gripen fighter jets, the cooperation arrangements related to NORAD would need to be reassessed due to concerns over interoperability and performance [4]. Group 2: Political Pressure and Historical Context - A former senior Canadian national security official, Vincent Rigby, described Hoekstra's comments as a political pressure tactic aimed at forcing the Canadian government to comply [4]. - The procurement of F-35s by Canada has faced delays and cost increases, which may impact the government's plans to purchase the jets [4]. - Canada originally planned to buy 88 F-35s, but only committed to 16 jets after a review prompted by former President Trump's threats regarding Canadian sovereignty [4][6].