“快艇交火”加剧美古关系紧张，古巴国家主席：古巴必将坚决捍卫自身

Group 1 - A U.S.-registered speedboat entered Cuban territorial waters, leading to a confrontation with law enforcement, resulting in 4 deaths and 6 injuries among the armed individuals on board [1][3] - The individuals on the boat were identified as Cuban nationals residing in the U.S., with many having criminal and violent backgrounds, and they were reportedly planning a terrorist infiltration [3][4] - The incident occurred amid heightened tensions between the U.S. and Cuba, exacerbated by U.S. oil sanctions against Cuba, which have severely impacted its economy [6][7] Group 2 - U.S. Secretary of State Rubio stated that the incident is rare and confirmed that no U.S. government personnel were involved, while investigations are ongoing [4] - The U.S. Treasury Department has authorized companies to resell Venezuelan oil to the Cuban private sector, which may help alleviate Cuba's fuel shortages, but transactions benefiting the Cuban military or government are prohibited [7] - Humanitarian aid is being provided to Cuba from Canada and Mexico, with Canada announcing an aid package worth 8 million Canadian dollars and Mexico sending 1,193 tons of supplies [7][9]